|
m1 |
m2 |
ρ |
θ |
Year |
|
Coordinates (J2000) |
|
|
BU733, 85 Peg |
|
AB |
5m8 |
8m9 |
0.4'' |
12° |
2015 |
Peg |
00h02m10.18s |
+27°04'55.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
85 Peg. With apodising mask. Difficult, see a brightening with averted vision and foveal coaxing, but does show as faint star briefly. My PA is ENE, which is slightly incorrect. 26.28 year period, this one is widening for apastron in 2035 |
|
|
|
|
STF3056 |
|
AB |
7m7 |
8m1 |
0.7'' |
143° |
2018 |
And |
00h04m40.09s |
+34°15'54.70" |
|
|
|
|
AB-C |
7m1 |
10m1 |
26.3'' |
4° |
2017 |
|
|
|
|
|
|
|
AB-D |
7m1 |
10m6 |
95.3'' |
238° |
2012 |
|
|
|
|
|
|
|
CD |
10m1 |
10m6 |
113.1'' |
227° |
2015 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
76mm (29x) |
AB-C: bei 29x ist nach Norden eine ganz schwache Komponente erkennbar, gut getrennt - AB wirkt leicht gelblich, C eher kupfergrau |
|
Sarah Gebauer
Germany |
100mm (73x) |
die Komponenten AB erscheinen als ein Stern, C liegt nördlich davon und ist wesentlich schwächer und Komponente D, die ähnlich hell wie C erscheint, liegt westlich von AB gesehen |
|
|
|
|
STT547 |
|
AB |
9m0 |
9m2 |
6.0'' |
190° |
2020 |
And |
00h05m41.03s |
+45°48'43.30" |
|
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
bei 64x klare Trennung - ein relativ schwaches Pärchen - zurück auf 32x stehen beide dichter zusammen und können knapp getrennt werden |
|
Uwe Pilz
Leipzig (Germany) |
105mm (144x) |
Der nahe gelegene ß997 konnte nicht getrennt werden |
|
|
|
|
STF3060 |
|
AB |
9m3 |
9m7 |
3.3'' |
136° |
2020 |
Peg |
00h05m55.56s |
+18°04'34.40" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Very close, ~3", equal brightness, pretty faint. |
|
|
|
|
STF3062, V640 Cas |
|
|
6m4 |
7m3 |
1.5'' |
6° |
2020 |
Cas |
00h06m15.81s |
+58°26'12.50" |
|
|
Robert Zebahl
Leipzig (Germany) |
152mm (129x) |
Nice view, clearly split, but tight with visible difference in brightness. |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (460x) |
leicht |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
Light yellow and a more orange yellow B, 3-4", 1 delta mag. PC (70.07 L.Y.) |
|
René Merting
Drachhausen (Germany) |
320mm (320x) |
erst bei 320x ist Komponente B knapp getrennt nördlich von A zu erkennen - beide Sterne sind relativ hell und haben relativ große Beugungsscheibchen, so dass die Trennung nur knapp zu sehen ist - nicht wirklich schön, wenn man in den Nächten vorher mit einem Refraktor Doppelsterne beobachtet hat |
|
|
|
★
|
STF2 |
|
|
6m7 |
6m9 |
0.9'' |
15° |
2019 |
Cep |
00h09m20.18s |
+79°42'52.40" |
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (198x) |
Schneemann-Figur. Abstand 0“91 |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
getrennt |
|
|
|
★
|
AC1 |
|
|
7m3 |
8m3 |
1.9'' |
291° |
2020 |
And |
00h20m54.10s |
+32°58'40.90" |
|
|
Robert Zebahl
Leipzig (Germany) |
102mm (125x) |
Very attractive, relatively close with a clearly visible difference in brightness. In the immediate vicinity a brighter star shines in a lovely orange. Very nice contrast! |
|
Uwe Pilz
Leipzig (Germany) |
105mm (200x) |
orange. Leuchtend gelber Stern in 5' Abstand |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Tight yellow-white pair, near equal magnitudes. |
|
|
|
★
|
BU394 |
|
AB |
8m5 |
8m8 |
0.8'' |
278° |
2017 |
Cas |
00h30m45.56s |
+47°31'47.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Very fine, pop split with seeing, near equal. |
|
|
|
|
STT12, lam Cas |
|
|
5m3 |
5m6 |
0.2'' |
210° |
2010 |
Cas |
00h31m46.32s |
+54°31'20.30" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Lambda Cas: Maybe out of round? Marginal |
|
Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
Lam Cas. Very bright, through the speckle pattern I can see elongation with subtle notch with B maybe to the west? [Correct!] Two other stars in field. Short period, 245 year period but it's whipping around A at the moment, 0.112" now, will make a quarter turn by 2037 but still be nearly the same impossible separation. |
|
|
|
|
VYS2, V547 Cas |
|
AB |
10m6 |
12m2 |
3.6'' |
186° |
2019 |
Cas |
00h32m29.43s |
+67°14'08.80" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
V547 Cas. Faint, very fine pair, seen at 205x and had a better look at 333x. Wide, ~4" slightly reddish faint stars. SkyTools brought this up as a short period pair, however it won't make a significant change in my time. It turns out A is also a pair, MCY 1 Aa-Ab, 10.8/12.5 0.5" with a period of only 15.59 years -- discovered by one D.W. McCarthy (no relation!) in 1989 during the first results of the Steward Observatory Infrared Speckle Camera using their 2.3 meter telescope. The Ab star has a mass of only 0.18 of the sun. I think it is gettable visually with the Challenger on a good transparent night, or with the Lick Great Refractor if I ever have the good fortune to observe with it |
|
|
|
★★★
|
eta Cas, 24 Cas |
STF60 |
AB |
3m5 |
7m4 |
13.4'' |
326° |
2019 |
Cas |
00h49m06.29s |
+57°48'54.70" |
|
|
|
STF60 |
AC |
3m5 |
11m4 |
225.0'' |
260° |
2000 |
|
|
|
|
|
|
STF60 |
AD |
3m5 |
12m8 |
189.4'' |
354° |
2011 |
|
|
|
|
|
|
STF60 |
AE |
3m5 |
10m2 |
75.6'' |
126° |
2015 |
|
|
|
|
|
|
STF60 |
AF |
3m5 |
11m5 |
378.3'' |
276° |
2000 |
|
|
|
|
|
|
STF60 |
AG |
3m5 |
9m5 |
419.7'' |
259° |
2012 |
|
|
|
|
|
|
STF60 |
AH |
3m5 |
8m4 |
701.1'' |
355° |
2012 |
|
|
|
|
|
|
SMR2 |
AI |
3m5 |
11m6 |
90.3'' |
73° |
2012 |
|
|
|
|
|
|
SMR2 |
AJ |
3m5 |
12m3 |
237.1'' |
262° |
2012 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (57x) |
AB: Easy to split with big difference in brightness. Fainter component appeared deep orange to slightly red colored, brighter component tends to be more slightly yellowish. |
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
AB: bei 32x ist Komponente A so hell, dass B trotz des augenscheinlich großen Abstandes von 13,4" nur knapp getrennt zu sehen ist - Komponente A ist gleißend hell-gelb, B dürfte mindestens 3 Größenklassen schwächer sein und wirkt dadurch dumpfer |
|
Uwe Pilz
Leipzig (Germany) |
105mm (53x) |
AB: leicht |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
kein Sternentstehungsgebiet! |
|
Sarah Gebauer
Germany |
150mm (54x) |
AB: bei 54x erst nur einen Stern gesehen, doch da, ganz schwach darunter doch die wesentlich schwächere, zweite Komponente entdeckt |
|
Winfried Kräling
Marburg (Germany) |
152mm (175x) |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
AB: Nice yellow pair. A is a red tainted yellow, B is cleaner. |
|
René Merting
Drachhausen (Germany) |
320mm (72x) |
AB: bei 72x ein echt fetter Farbkontrast, Komponente A ist gleißend hell und zitronengelb, B zeigt sich knallig orange - beide Sterne sind gut getrennt voneinander zu beobachten - sehenswert |
|
|
|
★
|
BU232 |
|
AB |
8m5 |
8m8 |
0.9'' |
256° |
2018 |
Cas |
00h50m25.10s |
+50°37'49.60" |
|
|
|
|
AB-C |
8m5 |
10m1 |
24.5'' |
300° |
2018 |
|
|
|
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (533x) |
AB: Nice, well split, near equal. Part of a triple, the next one much wider in same PA and two delta mag. [AB-C is 10.06 24.5"] |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
AB: Neat near equal orange and yellow. Split with seeing, 1". |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
AB-C: C 2 delta mag fainter than B, about 25" separated, is the +1 star with BU232AB |
|
|
|
|
HLD4 |
|
|
9m0 |
9m5 |
0.3'' |
38° |
2007 |
Cas |
00h57m35.79s |
+54°23'44.80" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
Yellowish stars, nicely split, a near equal. [this pair is widening, will get a little easier, was 1" at discovery in 1881 -- Holden, Lick director.] |
|
|
|
|
STF79, 164 And |
|
|
6m0 |
6m8 |
7.9'' |
195° |
2018 |
And |
01h00m03.56s |
+44°42'47.70" |
Robert Zebahl
Leipzig (Germany) |
55mm (25x) |
Beautiful double star, relatively tight with visible difference in brightness. |
|
René Merting
Drachhausen (Germany) |
320mm (45x) |
ein wunderschöner Doppelstern für 45x - im Umfeld fallen zwei relativ helle Sterne sehr dicht stehend auf - B ist eine halbe Magnitude schwächer und strahlt zwar auch weiß wie A, aber etwas schmutziger |
|
Mark McCarthy
Fremont (California/USA) |
508mm (205x) |
164 And. Dual white headlights, slight mag difference. Physical |
|
|
|
★
|
MAD1 |
|
|
7m7 |
9m1 |
0.8'' |
1° |
2015 |
And |
01h00m35.58s |
+47°19'14.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
Exceptionally fine split with 333x, obvious with 533x, getting really nice airy disks. ~2 delta mag, <1", pale yellow A and very light green B. Physical pair with a 925 year period. |
|
|
|
★
|
A2901 |
|
|
7m1 |
7m8 |
0.4'' |
64° |
2018 |
Cas |
01h01m30.15s |
+69°21'30.70" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (885x) |
Elongated to notched with seeing |
|
|
|
|
STT21 |
|
|
6m8 |
8m1 |
1.3'' |
175° |
2018 |
And |
01h03m01.54s |
+47°22'34.10" |
|
|
Robert Zebahl
Leipzig (Germany) |
102mm (160x) |
2020-11-02: The double star appears clearly elongated, but with no visible notch. |
|
Uwe Pilz
Leipzig (Germany) |
120mm (180x) |
weiß |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Nice pale yellow bright stars, ~2 delta mag, needed 333x clearly resolve, ~1". Physical pair with 450 year period |
|
|
|
|
STT515, phi And, 42 And |
|
AB |
4m6 |
5m6 |
0.6'' |
115° |
2016 |
And |
01h09m30.12s |
+47°14'30.60" |
|
|
Robert Zebahl
Leipzig (Germany) |
102mm (280x) |
2020-11-04: Seeing 3-4/5; In no way separable or detectable as a double star. |
|
Uwe Pilz
Leipzig (Germany) |
120mm (180x) |
|
|
Robert Zebahl
Leipzig (Germany) |
152mm (300x) |
2020-11-06: Seeing 3/5; Not detectable as a double star. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (677x) |
Phi And. I get elongation in the speckle matter, but no better resolution. Bright 0.52" pair |
|
|
|
★
|
BU235 |
|
Aa-Ab |
7m5 |
7m8 |
0.8'' |
143° |
2018 |
Cas |
01h10m34.31s |
+51°00'47.80" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
Mehrfachsystem |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Amazing system with five faint pairings, but the main attraction is Aa-Ab, near equal bright A, hairline at 205x and and a nice clean split at 333x, light yellow stars, slight magnitude difference. Seeing giving me nice round disks. Terrific. Physical pair with a 278 year period. Amazingly, Burnham discovered this with his 6-inch |
|
|
|
|
STT28 & STTA14 & BU1359 |
STT28 |
AB |
7m5 |
8m8 |
0.9'' |
296° |
2006 |
Cep |
01h19m07.19s |
+80°51'42.60" |
|
|
|
STTA14 |
AB-C |
7m6 |
6m7 |
127.6'' |
24° |
2003 |
|
|
|
|
|
|
BU1359 |
CD |
6m7 |
11m6 |
70.2'' |
154° |
2015 |
|
|
|
|
|
Christopher Hay
Seeheim (Germany) |
7x45 |
STTA14 (AB-C): Handheld. AB-C well separated. |
|
Christopher Hay
Seeheim (Germany) |
10x42 |
STTA14 (AB-C): AB-C: Sweeping the field on the lookout for S405, STTA14 ist immediately striking as double, AB wide apart from C. |
|
Christopher Hay
Seeheim (Germany) |
15x60 |
STTA14 (AB-C): AB-C: Wide pair, strong presence in 3.3° FOV. Northern component (C) clearly brighter. Attractive triangle of stars 1.5° to the south. |
|
Christopher Hay
Seeheim (Germany) |
180mm (200x) |
STT28 (AB): AB: Component B flashes out in good moments. PA estimated at 295° without prior knowledge.
A physical double at a distance to us of 510 light years. Observed 1 March 2021, current separation 0.846" according to Stelledoppie. |
|
|
|
★
|
STF115 |
|
AB |
7m1 |
7m3 |
0.5'' |
160° |
2018 |
Cas |
01h23m21.27s |
+58°08'35.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Peanut, near equal. in nearly the same FOV with Detla Cas, V 465 pretty orange star, and NGC 457, a loose moderately rich open cluster |
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
Wonderful split, more than hairline, white stars, near equal. Nice airy disks. Physical with 222 year period, Struve discovered at 0.7" approaching apastron |
|
|
|
|
V773 Cas |
BU870 |
AB |
6m3 |
8m7 |
0.6'' |
332° |
2010 |
Cas |
01h44m17.96s |
+57°32'11.80" |
|
|
|
GUI2 |
AC |
6m3 |
16m0 |
18.3'' |
57° |
2015 |
|
|
|
|
|
|
ARN55 |
AD |
6m3 |
9m9 |
160.5'' |
45° |
2003 |
|
|
|
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
AD: Very wide separation 1 delta mag. physical double. This is the AD pair of a more complicated system. AB = V773 Cas = BU 870 which is 6.29/8.68 0.3", AC = GUI 2, 6.29/16.00 16.8". |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
AD: Picking up a pinpoint in A's diffraction, very faint with seeing, <1", 3-4 delta mag, white. Marginal. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
AB: Elongated at 667x, with 1067x it is a clear elongation with the B star sticking out like a stump, but not notched. It is now near periastron, and will widen rapidly to 0.448" by 2030. 184.9 year period. Need to go back and make a sketch, since it will be on the opposite side of the A star in 2030 |
|
|
|
|
STF158 |
|
AB |
9m0 |
9m4 |
2.2'' |
272° |
2018 |
Tri |
01h46m44.07s |
+33°09'45.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
Nice split, pretty wide considering low magnification. Orange-yellow stars about half delta mag |
|
Karsten Kopp
Köln (Germany) |
600mm (180x) |
Doppelstern noch gut zu trennen. Der Helligkeitsunterschied beträgt knapp eine Magnitude und der etwas hellere Stern leuchtet gelblich und der schwächere orange gelb. |
|
|
|
|
HO311 |
|
|
8m2 |
7m8 |
0.4'' |
178° |
2018 |
Ari |
01h51m13.34s |
+24°39'08.00" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
Nice clear split with seeing, more near equal but there is a noticeable magnitude difference, white stars |
|
|
|
|
BU260 |
|
|
8m8 |
9m0 |
1.1'' |
261° |
2018 |
Ari |
01h53m14.21s |
+15°26'00.30" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (533x) |
Fine pair, well split, half delta mag |
|
|
|
|
BU513, 48 Cas |
|
AB |
4m7 |
6m7 |
0.6'' |
320° |
2013 |
Cas |
02h01m57.55s |
+70°54'25.40" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Searched around the swollen, shimmering bright A star disk and felt there was a faint close B trying to resolve in the first diffraction at 553x. Apodizing mask cleaned up the image but no B resolved |
|
|
|
|
alpha Psc, 113 Psc, Alrischa, Kaitain, Okda |
STF202 |
AB |
4m1 |
5m2 |
1.9'' |
264° |
2019 |
Psc |
02h02m02.80s |
+02°45'49.40" |
|
|
|
PWL1 |
AC |
4m1 |
8m2 |
404.9'' |
63° |
2006 |
|
|
|
|
|
|
PWL1 |
AD |
4m1 |
8m6 |
434.5'' |
335° |
2006 |
|
|
|
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (88x) |
AB: der hellere Stern ist weiß |
|
|
|
★
|
STF208, 10 Ari |
|
AB |
5m8 |
7m9 |
1.3'' |
349° |
2018 |
Ari |
02h03m39.26s |
+25°56'07.60" |
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (200x) |
helle Stelle im ersten Ring |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
~2 delta mag, ~1" very nice. ~1 disk split. Nice! |
|
|
|
★★★
|
gamma And, 57 And, Alamak |
STF205 |
A-BC |
2m3 |
5m0 |
9.6'' |
63° |
2019 |
And |
02h03m53.92s |
+42°19'47.50" |
|
|
|
STT38 |
BC |
5m3 |
6m5 |
0.2'' |
96° |
2010 |
|
|
|
|
|
|
BAR22 |
AD |
2m3 |
15m0 |
27.9'' |
245° |
1898 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
63mm (42x) |
A-BC: Easy to split with quite large difference in brightness. |
|
Christopher Hay
Seeheim (Germany) |
71mm (32x) |
Fine split. A is mandarine orange. BC has trouble displaying its colour due to the overpowering light of A, but in good moments is clearly blue.
A-BC is a physical double at a distance to us of 393 light years.
BC is also physical, with a relatively short period of 63 years for C to circle B and a very tight periastron. Unobservable in 2013 at periastron with 0.1". Since then the angular separation has been widening rapidly and will reach 0.4" in 2029. B-C will then become observable in large amateur telescopes for three decades, after which C will fall quickly back to B. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (52x) |
A-BC: einfach |
|
Uwe Pilz
Leipzig (Germany) |
120mm (128x) |
A-BC |
|
Robert Zebahl
Leipzig (Germany) |
152mm (100x) |
A-BC: Very easy. A: orange, BC: rather white. |
|
Christopher Hay
Seeheim (Germany) |
180mm (110x) |
A very strong pair in 0.6° FOV with powerful colour contrast, A yellow, BC ice blue. |
|
René Merting
Drachhausen (Germany) |
320mm (45x) |
A-BC: bei 45x ein knapp getrenntes Pärchen - Komponente A knallgelb mit einem Anhängsel nordöstlich - Komponente BC strahlt 3 Größenklassen schwächer - bei 144x wirkt BC grün-weiß, bei 45x war der Eindruck noch leicht gelblich |
|
Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
BC: Component of STF 205, of which A is a brilliant orange and BC bright blue. In BC I can only see elongation through the speckle at 667x and 1067x. Short 62.63 year period which will get "easier" to about 0.2" by 2045 |
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
BC: I spent a good long while on this one, and tried hard to nail down the position angle. At 1067x, both with and without an apodising mask, but both times with a #80A light blue filter, which did seem to calm the diffraction a little, I had a clear view of the elongation with a strong sense of the weaker end being to the East or to the ESE. I also tried a 78% central obstruction mask, and while the diffraction became a grid, and the disks much smaller, I could clearly see the same elongation and weaker end, though at a much smaller scale. To my delight the current orbital solution puts the PA at 120.6-degrees, 0.179" separation, so I think I have detected it. I can't wait until 2033 when this becomes an easy pair! |
|
|
Werner E. Celnik
Rheinberg (Germany) |
150mm |
A-BC |
|
Winfried Kräling
Marburg (Germany) |
127mm |
A-BC: Aufnahme vom 11.09.2020 am 127/1200mm Refraktor mit Barlowlinse (~2.5x)
Weit getrennt, Komponente A: goldgelb bis orange, Komponente BC: weißlich blau |
|
|
|
★★★
|
STF227, iota Tri, 6 Tri |
|
|
5m3 |
6m7 |
3.7'' |
69° |
2016 |
Tri |
02h12m22.28s |
+30°18'11.10" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (57x) |
At 44x even separable with a clear difference in brightness, whereby the companion is almost outshone by the primary component. At 57x easy to separate. Primary component shines in bright orange, companion slightly orange. Beautiful sight together with STF232 in one field of view! |
|
Uwe Pilz
Leipzig (Germany) |
105mm (88x) |
weiß und blau |
|
Christopher Hay
Seeheim (Germany) |
180mm (110x) |
Well separated. Primary yellowish, secondary light blue. When 6 Tri drifts out of 0.6° FOV, STF232 drifts in.
6 Tri is a physical double at a distance to us of 291 light years. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
6 Tri. Yellow A, white b, pretty. Wide, about two delta mag |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (200x) |
Helligkeitsunterschied deutlich |
|
Karsten Kopp
Köln (Germany) |
600mm (180x) |
Doppelstern ist noch gut zu trennen und der Helligkeitsunterschied ist mit gut 1,5 mag schon sehr auffällig. Der hellere Stern erstrahlt schön gelblich, der schwächer weiß. In den Momenten der wirklich ruhigen Luft, ein sehr schöner Doppelstern |
|
|
|
★
|
STF234 |
|
AB |
8m7 |
9m4 |
0.6'' |
222° |
2012 |
Cas |
02h17m23.00s |
+61°21'06.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (885x) |
Light orange star, definitely elongated, maybe notched, but no convincing split. Tough little Struve. |
|
|
|
|
A2329 |
|
|
9m4 |
9m6 |
0.5'' |
101° |
2018 |
Cet |
02h27m45.86s |
+04°25'55.90" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
Split at 533x but used barlow to confirm the PA accurately since this is a short period pair. Nicely split orange stars, half delta mag. Seeing it now at nearly the furthest extent of its orbit, it will become more difficult with time. The pair is a "mere" 55.91 lightyears away |
|
|
|
★★
|
iota Cas, STF262 & CHR6 |
CHR6 |
Aa-Ab |
4m6 |
8m5 |
0.6'' |
42° |
2010 |
Cas |
02h29m03.96s |
+67°24'08.70" |
|
|
|
STF262 |
AB |
4m6 |
6m9 |
2.9'' |
230° |
2017 |
|
|
|
|
|
|
STF262 |
AC |
4m6 |
9m1 |
6.7'' |
117° |
2015 |
|
|
|
|
|
|
STF262 |
AD |
4m6 |
8m5 |
210.9'' |
60° |
2016 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
55mm (27x) |
Only the D component was well visible. The components B & C were not visible even at magnifications up to 167x. The sky was clearly brightened (Bortle 7). |
|
Robert Zebahl
Leipzig (Germany) |
70mm (120x) |
Components A, B and C pretty close together, D far apart. Component B appeared slightly elongated on the first diffraction ring of the primary component. Rewarding! |
|
René Merting
Drachhausen (Germany) |
100mm (142x) |
AB: bei 142x zeigt sich Komponente B im SW mit gut einem Drittel das Abstandes AC, Helligkeitsunterschied 1.5 bis 2 Größenklassen
AC: bei 64x getrennt, schöner Farbkontrast, Komponente A ist weiß mit einem Stich ins Gelbe, C leicht bräunlich
AD: bei 32x extrem weiter Abstand zwischen A und D, Helligkeitsunterschied mehr als 2 Größenklassen (laut Stelle Doppie sogar 3.85 mag) |
|
Uwe Pilz
Leipzig (Germany) |
105mm (200x) |
Dreifachstern lohnend |
|
Sarah Gebauer
Germany |
150mm (160x) |
bei 160x sind die Komponenten AC getrennt, B leider nicht, die schwache Komponente C versinkt fast im Strahlen der hellen Komponente A, ein sehr reizvoller Anblick! Von Komponente D wusste ich während der Beobachtung noch nichts, sie taucht unter den Feldsternen der Zeichnung auch auf |
|
Robert Zebahl
Leipzig (Germany) |
152mm (129x) |
Component D easy to see even at lowest magnification. Component C is also easily visible at 49x. At 69x the component B is indicated, at 100x clearly visible. C appears slightly grey-bluish and obviously fainter than B. Grand sight at 129x! |
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
CHR6 (Aa-Ab): This is a component of Iota Cas, STF 262 (which is a really pretty triple). CHR 6 at 1067x and seeing through the speckle image, I get elongation with a suspected blunter end which I assume is the B side, PA to the north [it's actually to the south -- my general orientation is correct but mis-interpret the brighter end]. Physical with 47 year period, currently at periastron and will tighten to 0.2" by 2036 |
|
|
|
|
STF295, 84 Cet |
|
|
5m8 |
9m7 |
3.6'' |
301° |
2012 |
Cet |
02h41m14.00s |
-00°41'44.40" |
|
|
Robert Zebahl
Leipzig (Germany) |
102mm (160x) |
Quite easy at a moderate distance, whereby the companion appeared rather faint and was best visible with averted vision. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (144x) |
trotz diesigem Himmel bei 144x indirekt erkennbar. Schwieriger bei 200x |
|
Robert Zebahl
Leipzig (Germany) |
152mm (129x) |
Easy. The quite dim companion is immediately visible in moderate distance clearly outside of the first diffraction ring despite few, high clouds. The primary component appeared white-yellowish. |
|
|
|
★
|
A2906 & STF314 |
A2906 |
AB |
7m3 |
8m8 |
0.3'' |
115° |
2018 |
Per |
02h52m52.03s |
+52°59'50.60" |
|
|
|
STF314 |
AB-C |
7m0 |
7m3 |
1.6'' |
316° |
2018 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
152mm (129x) |
STF314 (AB-C): Beautifully separated, quite close together. Difference in brightness visible, but rather small. Easy to find and bright. Very nice. |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (460x) |
STF314 (AB-C): ähnlich hell |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
A2906 (AB): This is the brighter of the STF 314 pair. I have a feeling it is slightly elongated but nothing certain. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
STF314 (AB-C): near equal brightness, AB more yellow yellow-white of the two, ~2 disk separation |
|
|
|
|
BU525 |
|
|
7m5 |
7m5 |
0.5'' |
276° |
2019 |
Ari |
02h58m53.11s |
+21°37'03.90" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Star is decidedly not round but does not show shape other than a stretching. |
|
|
|
★
|
STF333, eps Ari |
|
AB |
5m2 |
5m6 |
1.5'' |
211° |
2019 |
Ari |
02h59m12.73s |
+21°20'25.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
Eps Ari: Beautiful split of white stars, less than 1 delta mag, a little more than 1". Very nice pair. Physical with a 1215 year period |
|
|
|
★
|
STF346, 52 Ari |
|
AB |
6m2 |
6m2 |
0.5'' |
256° |
2016 |
Ari |
03h05m26.69s |
+25°15'18.70" |
|
|
|
|
AB-C |
5m5 |
10m8 |
5.1'' |
358° |
2005 |
|
|
|
|
|
|
|
AB-D |
5m5 |
13m3 |
102.1'' |
83° |
2013 |
|
|
|
|
|
|
|
AB-E |
5m5 |
12m8 |
133.5'' |
192° |
2014 |
|
|
|
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
AB: What a great set! The closest are a near equal pair of white stars, elongated with a slight notch, There's a faint C ~5" and slight more than a right angle in PA. Interesting set. Physical with 227 year period |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
AB-C: Bright yellow-white AB, orange C. ~4-5 delta mag, 5-6" PA to N. Did not notice AB 0.5" |
|
|
|
|
BU1030 |
|
AB |
7m8 |
9m7 |
0.8'' |
102° |
2015 |
Ari |
03h10m06.57s |
+21°44'49.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Good clean split, slight magnitude difference, small pair. Really good. Physical with 571 year period |
|
|
|
|
STF360 |
|
|
8m0 |
8m3 |
2.7'' |
126° |
2015 |
Per |
03h12m09.59s |
+37°13'03.30" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (67x) |
Pretty faint double star. At 57x barely separable with almost touching diffraction disks. The components seemed similarly bright. At 67x still very close together, at 100x easy to separate. |
|
Robert Zebahl
Leipzig (Germany) |
152mm (69x) |
Split, but close together, similarly bright. The double star appears overall slightly orange compared to the surrounding stars. |
|
|
|
★★
|
STT51 |
|
|
8m5 |
8m7 |
0.6'' |
346° |
2018 |
Per |
03h12m57.08s |
+44°17'14.70" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Very fine clean split at the finest moments, which is once every 10 seconds. 0.5", equal mag. |
|
|
|
|
HU544 |
|
|
6m7 |
8m2 |
1.7'' |
103° |
2018 |
Per |
03h15m48.70s |
+50°57'21.20" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (133x) |
Clearly seen as figure '8' with noticeable difference in brightness. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (196x) |
klebt am ersten Ring |
|
Uwe Pilz
Leipzig (Germany) |
105mm (260x) |
im ersten Ring |
|
Robert Zebahl
Leipzig (Germany) |
152mm (129x) |
Wonderfully separated in equally beautiful star surroundings! Clear difference in brightness visible. To the east there is a brighter star, which shines yellowish-orange. HU544 itself seems rather cool in color. |
|
|
|
|
BU787 |
|
AB |
7m4 |
11m9 |
5.2'' |
293° |
2016 |
Per |
03h34m12.97s |
+48°37'02.90" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (121x) |
Very nice, white and very large delta mag B, but seen plainly with low magnification. Physical, 655.8 year period |
|
|
|
★★★
|
STF412, 7 Tau |
|
AB |
6m6 |
6m9 |
0.8'' |
351° |
2019 |
Tau |
03h34m26.62s |
+24°27'52.10" |
|
|
|
|
AB-C |
5m9 |
9m9 |
22.4'' |
53° |
2014 |
|
|
|
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (260x) |
AB: A-B länglich |
|
Christopher Hay
Seeheim (Germany) |
180mm (110x) |
No definite elongation of AB seen at 110x, seeing is poor. But nice pinprick of light wide off to NE, seems bluish, this is the C component.
AB-C is physical at 429 light years distance from us, and so is A-B, so this is a physical triple system. Very easy to find 3° due west of the Pleiades. |
|
|
|
★
|
BU533 |
|
AB |
7m5 |
7m7 |
1.0'' |
222° |
2018 |
Per |
03h35m37.81s |
+31°40'48.70" |
|
|
Robert Zebahl
Leipzig (Germany) |
152mm (225x) |
At 129x clearly elongated, notched. At 225x just so separable with similarly bright components. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (270x) |
Overlapping yellow-orange disks, equal mag |
|
|
|
|
STF425 |
|
AB |
7m5 |
7m6 |
1.9'' |
59° |
2018 |
Per |
03h40m07.24s |
+34°06'59.30" |
|
|
Robert Zebahl
Leipzig (Germany) |
152mm (129x) |
Beautifully separated, relatively close together, very little difference in brightness. |
|
|
|
|
BU536 & S437, SAO76169 |
S437 |
AB-C |
8m1 |
7m7 |
38.8'' |
308° |
2017 |
Tau |
03h46m16.00s |
+24°11'23.50" |
|
|
|
BU536 |
AB |
8m1 |
9m4 |
1.1'' |
178° |
2016 |
|
|
|
|
|
|
BU536 |
CD |
7m7 |
12m9 |
18.3'' |
5° |
2015 |
|
|
|
|
|
Christopher Hay
Seeheim (Germany) |
10x42 |
S437 AB-C: A fine, compact pair at the centre of the Pleiades. Not physical, in contrast to AB. |
|
Christopher Hay
Seeheim (Germany) |
71mm (13x) |
S437 AB-C: Well separated. The most double-starish pair in the whole of the Pleiades at this power. |
|
Christopher Hay
Seeheim (Germany) |
76mm (20x) |
S437 AB-C: Well separated. Component C is slightly orange. |
|
Christopher Hay
Seeheim (Germany) |
180mm (200x) |
BU 536: AB seems to plop apart in good moments, but remains uncertain.
S437 AB-C: C is brown-orange, AB blue-white. |
|
|
|
|
STF443 |
|
AB |
8m2 |
8m8 |
6.7'' |
56° |
2020 |
Per |
03h47m02.11s |
+41°25'38.10" |
|
|
|
|
AC |
8m2 |
11m4 |
106.2'' |
331° |
2002 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
102mm (28x) |
AB: 2020-11-08: Nicely separated, relatively close together with little difference in brightness. |
|
|
|
|
STT66 |
|
|
8m1 |
8m5 |
1.0'' |
146° |
2018 |
Per |
03h52m04.69s |
+40°47'50.70" |
|
|
Robert Zebahl
Leipzig (Germany) |
102mm (187x) |
2020-11-08: Already at 125x visible as figure '8'. Seeing was not good enough for higher magnifications. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (270x) |
light orange equal magnitude, split with seeing, close ~1" |
|
|
|
|
STF483 |
|
|
7m4 |
9m3 |
1.6'' |
53° |
2018 |
Per |
04h04m07.10s |
+39°30'35.00" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (270x) |
Yellow-orange star, very close, 1", 2 delta mag. |
|
|
|
|
STT531, 50 Per |
|
AB |
7m3 |
9m7 |
2.7'' |
353° |
2018 |
Per |
04h07m34.35s |
+38°04'28.30" |
|
|
|
|
AC |
7m3 |
8m8 |
225.1'' |
217° |
2015 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
102mm (125x) |
AB: 2020-11-08: Clearly separated, relatively tight, fairly large difference in brightness. Primary component appeared white-yellowish with faint companion. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (270x) |
AB: AC is a finder split. The fainter of these has another star split 4", 2-3 delta mag., this is the AB pair. |
|
|
|
★
|
omicron 2 Eri, 40 Eri, STF518 |
|
A-BC |
4m4 |
9m3 |
82.7'' |
102° |
2019 |
Eri |
04h15m16.32s |
-07°39'10.30" |
|
|
|
|
BC |
9m5 |
11m2 |
8.2'' |
330° |
2019 |
|
|
|
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (244x) |
A ist gelblich. B fiel sofort ins Auge, auch bei 144x. C war extrem schwierig. A musste außerhalb des Gesichtsfeldes stehen, aber auch dann war er nur indirekt sichtbar. Dann aber überraschte der verhältnismäßig große Abstand B-C. ~ A ist ein Hauptreihenstern ähnlich der Sonne. B ist ein weißer Zwerg, einer der hellsten am Himmel. C ist ein Roter Zwerg, davon gibt es nicht viele in der Reichweite kleiner Instrumente. Insgesamt hat man drei Zwergsterne auf einen Blick: Einen gewöhnlichen (=Hauptreihen-) Zwerg, einen weißen und einen roten. |
|
|
Berthold Fuchs
Wiesbaden (Germany) |
130mm |
A-BC: Triplesystem with a white Dwarf |
|
|
|
|
HO328 |
|
|
7m4 |
9m1 |
0.4'' |
358° |
2016 |
Tau |
04h17m01.22s |
+19°40'32.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Very faint, very close ~0.8", emerges with seeing, hair split. Marginal |
|
|
|
★
|
STF520 |
|
|
8m3 |
8m4 |
0.6'' |
83° |
2019 |
Tau |
04h18m14.55s |
+22°48'24.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Faint elongated to overlapping disks. |
|
|
|
|
STT82 |
|
AB |
7m3 |
8m6 |
1.2'' |
327° |
2018 |
Tau |
04h22m44.10s |
+15°03'22.10" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Very close, 0.8" 1.5 delta mag, PA to N/NW. |
|
|
|
|
STT81, 56 Per |
|
AB |
5m8 |
9m2 |
4.2'' |
13° |
2017 |
Per |
04h24m37.46s |
+33°57'34.90" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (270x) |
56 Per. Pretty yellow and slight red pair, 2 delta mag. |
|
|
|
|
STF554, 80 Tau |
|
|
5m7 |
8m1 |
1.4'' |
15° |
2018 |
Tau |
04h30m08.60s |
+15°38'16.20" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
1" 2 delta mag, PA N. Nice! |
|
|
|
★★
|
STF572 |
|
AB |
7m4 |
7m2 |
4.4'' |
189° |
2018 |
Tau |
04h38m29.58s |
+26°56'25.60" |
|
|
Christopher Hay
Seeheim (Germany) |
42mm (12x) |
Slightly elongated. PA seen definitely without prior knowledge, confirmed in 3-inch. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (57x) |
Clearly separated, easy with beautiful color contrast: A slightly orange, B white. |
|
Christopher Hay
Seeheim (Germany) |
76mm (83x) |
Well separated, very even matched pair. |
|
|
|
|
STT92, 5 Aur |
|
AB |
6m0 |
9m5 |
4.1'' |
285° |
2017 |
Aur |
05h00m18.35s |
+39°23'40.90" |
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (160x) |
schwierig |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
Nur bei sehr hoher Vergrößerung überhaupt zu trennen, schwierig |
|
|
|
|
STF648 |
|
AB |
8m1 |
8m9 |
5.0'' |
64° |
2020 |
Aur |
05h10m59.19s |
+32°02'19.50" |
|
|
Robert Zebahl
Leipzig (Germany) |
55mm (40x) |
At 40x tight with obviously fainter component. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (33x) |
Separated, but tight with noticeable difference in brightness. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (144x) |
beide Komponenten gelb |
|
Mark McCarthy
Fremont (California/USA) |
317mm (270x) |
Light orange, half delta mag, wide. |
|
|
|
|
STT517 |
|
AB |
6m8 |
7m0 |
0.7'' |
244° |
2019 |
Ori |
05h13m31.55s |
+01°58'03.70" |
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (144x) |
Es erforderte einige Mühe zu sehen, welches der hellere Stern ist, |
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Consistently split but images are bloated by poor seeing, yellowish white stars, <1", near equal |
|
|
|
★★★
|
WNC2 |
|
A-BC |
6m9 |
7m0 |
3.1'' |
159° |
2019 |
Ori |
05h23m51.32s |
-00°51'59.80" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (44x) |
Double star appeared elongated. |
|
René Merting
Drachhausen (Germany) |
100mm (64x) |
bei 64x ein extrem eng stehendes wunderschönes Pärchen zweier gleich heller gelber Sterne - keine 8 mehr, beide sind schon getrennt - bei 107x kommt etwas mehr Luft zwischen beide, aber sie scheinen auch ein wenig Farbe zu verlieren |
|
Robert Zebahl
Leipzig (Germany) |
120mm (150x) |
Clearly split with nearly equally bright components. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Nice near equal, light yellow-white stars, well split. nice pair [BC is A 847 7.67/7.84 0.3" and could have been gotten on a better night!] |
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
Easy and obvious pair, bright 7th mag stars ~3". [This was a first try at the short period list but I missed the object, which is A 847 BC, 7.67/7.84 0.3" -- need to try again.] |
|
|
|
|
A848 |
|
|
6m9 |
7m9 |
0.3'' |
179° |
2016 |
Ori |
05h25m31.08s |
-00°32'38.20" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (533x) |
Suspect elongation at 333x, at 533x I get a snowman, very definite with seeing. White stars, noticeable mag difference |
|
|
|
|
STF728, 32 Ori |
|
|
4m4 |
5m8 |
1.3'' |
44° |
2017 |
Ori |
05h30m47.06s |
+05°56'53.30" |
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
sauber getrennt, Beugungsscheiben berühren sich gerade |
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
32 Ori White and off white pair, 1.5 delta mag, ~1.5". Nice and very clean with seeing |
|
|
|
★
|
STF742 |
|
|
7m1 |
7m5 |
4.2'' |
275° |
2019 |
Tau |
05h36m26.38s |
+21°59'35.10" |
|
|
Christopher Hay
Seeheim (Germany) |
76mm (83x) |
Just split. A little difficult. Suprisingly more difficult than STF572 about 15° to the northwest, although the numbers are very similar and the two systems are standing at identical elevation above horizon. At 40x STF742 is no longer definitely split, but M1 half a degree to the west is strong in 2° FOV by way of compensation. |
|
Robert Zebahl
Leipzig (Germany) |
102mm (62x) |
Beautifully separated, relatively tight with well visible difference in brightness. Points directly toward Messier 1 and can be observed with it in one field of view. Very nice! |
|
Robert Zebahl
Leipzig (Germany) |
120mm (48x) |
Nice, evident double near Messier 1. Easy to split with almost equally bright components. |
|
Robert Zebahl
Leipzig (Germany) |
152mm (69x) |
At 49x just so, at 69x easily separable. The fainter component appeared a little warmer in terms of color. Great view together with Messier 1 in the field of view. |
|
Robert Zebahl
Leipzig (Germany) |
200mm (80x) |
Nice double star with nearly equally bright components. |
|
|
|
|
STF749 |
|
AB |
6m5 |
6m5 |
1.1'' |
324° |
2019 |
Tau |
05h37m08.84s |
+26°55'28.30" |
|
|
|
|
AC |
6m5 |
10m5 |
181.6'' |
299° |
2011 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (133x) |
AB: I had the impression that in the correct position angle, without knowing that angle during observation, a minimal elongation could be detected. But observation is borderline and too doubtful. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
AB: Hair-split, equal brightness white stars. Nice. |
|
|
|
|
STF774, zeta Ori, 50 Ori, Alnitak |
|
AB |
1m9 |
3m7 |
2.4'' |
167° |
2017 |
Ori |
05h40m45.52s |
-01°56'33.30" |
|
|
|
|
AC |
1m9 |
9m6 |
58.5'' |
10° |
2017 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (128x) |
AB: Big difference in brightness. I could see the fainter component near the first ring of the Airy pattern of the brighter component. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
AB: sauber getrennt, Beugungsscheiben berühren sich gerade |
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
AB: Alnitak. Easy, 2 delta mag,~2", white |
|
Mark McCarthy
Fremont (California/USA) |
317mm (207x) |
AC: Alnitak:AC is a very faint star widely separated outside of the main star's glare. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (207x) |
AB: about 2" and 1.5 delta mag. |
|
|
|
|
BU560 |
|
|
7m8 |
8m2 |
1.7'' |
124° |
2019 |
Aur |
05h47m24.87s |
+29°39'26.90" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (100x) |
Clearly visible as a double star with overlapping diffraction disks (figure '8') and small difference in brightness. |
|
Robert Zebahl
Leipzig (Germany) |
152mm (129x) |
Separated with very little difference in brightness, relatively tight. Overall easy. |
|
|
|
|
STT119 |
|
|
8m1 |
8m9 |
0.7'' |
355° |
2009 |
Ori |
05h47m54.88s |
+07°57'37.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Suspect elongations with 8" 533x & 20" 533x, but image not good enough. But I got a nice clean split with apodizing mask, nearly perfrect disks. Orange stars well split, <1", about 1 delta mag |
|
|
|
|
STF795, 52 Ori |
|
|
6m0 |
6m0 |
1.0'' |
221° |
2019 |
Ori |
05h48m00.21s |
+06°27'14.50" |
|
|
Sarah Gebauer
Germany |
150mm (125x) |
bei 125x und 250x nicht getrennt im April 2020 |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Bright white, near equal magnitude, near touching disks hairline split |
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
52 Ori. Close but well split, near equal, ivory white. with apodising mask |
|
|
|
|
STF3115 |
|
|
6m5 |
7m5 |
0.9'' |
337° |
2017 |
Cam |
05h49m04.64s |
+62°48'29.60" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
gerade eben trennbar mit schwarzem Zwischenraum |
|
|
|
★★
|
BU1053 |
|
|
6m9 |
8m8 |
1.9'' |
0° |
2019 |
Aur |
05h53m28.64s |
+37°20'20.70" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (133x) |
Border observation! Companion is temporarily visible in the correct position angle as an extremely dim brightening of the first diffraction ring of the primary component. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (270x) |
Nice!! Blazing white and close but nicely split light blue B, 2 delta mag. |
|
|
|
|
STT124 |
|
|
6m1 |
7m4 |
0.6'' |
299° |
2018 |
Ori |
05h58m53.23s |
+12°48'29.80" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (170x) |
Seeing not good. Bloated yellow star with bluish B just attached to the edge, like a wart. B is very faint, small. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Briefly split in the best moments, 1 second out of 10. A star yellow-white and small, hard blue B. |
|
|
|
|
STT545, 37 Aur, theta Aur |
|
AB |
2m6 |
7m2 |
4.2'' |
304° |
2019 |
Aur |
05h59m43.24s |
+37°12'45.90" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (57x) |
At 57x nothing seen at first sight. At 133x the much fainter component was visible after a short time as a tiny star in the correct position angle. With this knowledge, the observation at 57x was also successful, even if one has to look very closely. The challenge here is not so much the angular distance as the large difference in brightness. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (200x) |
blauweiß. Wegen der etwas unruhigen Luft und des Helligkeitsunterschiedes nicht einfach. |
|
|
|
|
J335 |
|
|
8m4 |
9m5 |
1.3'' |
271° |
2015 |
Ori |
06h04m08.29s |
+11°00'57.00" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
White A, B resolves with seeing, hairline split and two delta mag. Tough at this aperture |
|
|
|
|
STT132 |
|
|
7m2 |
9m6 |
1.8'' |
332° |
2012 |
Aur |
06h08m11.68s |
+37°58'57.90" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (270x) |
White A and slightly red B. Fine pair. 2 delta mag. |
|
|
|
|
BU1008, eta Gem, 7 Gem, Propus |
|
|
3m5 |
6m2 |
1.7'' |
255° |
2018 |
Gem |
06h14m52.69s |
+22°30'24.60" |
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (260x) |
Aufhellung im ersten Ring |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
sehr schwierig |
|
Robert Zebahl
Leipzig (Germany) |
152mm (225x) |
Already comparatively easy at 180x. The faint companion can be seen well as a quite distinct, slightly elongated, partly round brightening. At 225x and above it becomes easy and immediately apparent, even if the diffraction rings of the primary component are not permanently visible due to the seeing. The primary component was shining in a bright orange. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Propus. Yellow A and blue-yellow B, 2 delta mag, 1.5" very nice |
|
|
|
|
STF881, 4 Lyn |
|
AB |
6m1 |
7m7 |
0.6'' |
149° |
2016 |
Lyn |
06h22m03.57s |
+59°22'19.50" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
schwierig wegen Helligkeitsunterschied |
|
|
|
|
STF932 |
|
|
8m3 |
8m5 |
1.6'' |
305° |
2019 |
Gem |
06h34m21.57s |
+14°45'08.30" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (150x) |
Unfortunately a nearby lamp bothered me. I could see the double star at least elongated. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Very neat near equal white stars, well split |
|
|
|
★★★
|
AGC1, 9 CMa, alpha CMa, Sirius |
|
AB |
-1m5 |
8m4 |
10.7'' |
75° |
2016 |
CMa |
06h45m08.92s |
-16°42'58.00" |
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (198x) |
mit ADV, ohne nicht trennbar. Eindeutig |
|
Robert Zebahl
Leipzig (Germany) |
120mm (150x) |
2021-03-02: Used magnifications from 86x to 200x using a Baader yellow filter. The diffraction disk was relatively good visible, but the diffraction rings were noticeably in movement (Seeing 3/5). |
|
Jörg S. Schlimmer
Germany |
127mm (136x) |
not split |
|
Mark McCarthy
Fremont (California/USA) |
203mm (368x) |
Small disk formed on diffraction spike at correct separation and PA (Feb. 2016) |
|
Mark McCarthy
Fremont (California/USA) |
317mm (443x) |
A faint yellow-orange disk, to the edge of Sirius A's diffraction and just below my spider's diffraction spike. I let Sirius pass beyond the field stop, and for an instant there was Sirius B, clearly separated, before it too passed beyond the field stop. |
|
|
Jörg S. Schlimmer
Germany |
305mm |
hard to split with CMOS Camera |
|
|
|
★★★
|
STF948, 12 Lyn |
|
AB |
5m4 |
6m0 |
1.9'' |
64° |
2019 |
Lyn |
06h46m14.15s |
+59°26'30.10" |
|
|
|
|
AC |
5m4 |
7m0 |
8.9'' |
309° |
2019 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
55mm (27x) |
AC: Components A/B and C well separated, but tight. Significant difference in brightness. The fainter C companion appeared slightly orange, the brighter one white-bluish. |
|
Robert Zebahl
Leipzig (Germany) |
55mm (167x) |
AB: Components A and B separated, whereby the Airy disks slightly overlap. The difference in brightness was well visible. |
|
Robert Zebahl
Leipzig (Germany) |
63mm (140x) |
AB: Components A and B split with almost no space in between. The difference in brightness was visible. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (22x) |
AC: Well split, relatively close together with significant difference in brightness. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (133x) |
AB: Both components A + B clearly split, whereby the diffraction rings where merged together. A very nice view together with component C. I sketched this triplet, which reflects my impression well. Unfortunately, the distance and position angle are not particularly well observed. Also the difference in brightness I didn't noticed during my observation. |
|
Robert Zebahl
Leipzig (Germany) |
102mm (129x) |
At 28x the pair AC is nicely separated without any problems. The close pair AB is already recognizable at 86x as a clear figure '8', at 125x wonderfully separated. The components A & B appear yellowish. Very nice view together with STF 946 in one field of view! |
|
Uwe Pilz
Leipzig (Germany) |
105mm (88x) |
im selben Feld mit STF 946 |
|
Robert Zebahl
Leipzig (Germany) |
152mm (129x) |
At 49x the pair AC is beautifully separated with a significant difference in brightness. At 100x, the close pair AB is also separated, although still very close together. A slight difference in brightness is noticeable. At 129x, the view is magnificent. The two bright components A & B present themselves yellowish, the fainter component C rather greyish. STF 948 can be well observed in a field of view with the neighbouring double star STF 946. Both show a nice overall scenery. |
|
|
|
|
STT157 |
|
|
7m2 |
9m2 |
0.6'' |
161° |
2018 |
Mon |
06h47m47.56s |
+00°20'24.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
Yellow A, widely separated from blue B. 2 magnitude difference. Did not notice 0.8" separation in A |
|
|
|
★
|
STF958 |
|
AB |
6m3 |
6m3 |
4.5'' |
77° |
2019 |
Lyn |
06h48m12.29s |
+55°42'15.10" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (33x) |
Clearly split, equally bright, close together. Nice view. |
|
Robert Zebahl
Leipzig (Germany) |
102mm (62x) |
Very nicely split. Both components appear similarly bright and white-yellowish. |
|
|
|
★
|
STF982, 38 Gem |
|
AB |
4m8 |
7m8 |
7.3'' |
145° |
2018 |
Gem |
06h54m38.63s |
+13°10'40.10" |
|
|
Robert Zebahl
Leipzig (Germany) |
55mm (27x) |
At 27x pretty tight with much fainter component. At 71x clearly separated with clear difference in brightness. Brighter component appeared slightly yellowish, the weaker one slightly bluish. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (33x) |
Easy to separated with noticeable difference in brightness. The fainter component appeared slightly orange, the brighter one rather white. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (130x) |
recht attraktiv |
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
38 Gem. Light yellow A and blue B, quite wide, very pretty. AC much wider separation much fainter not noticed |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Bright orange and slightly red star, 2-3 delta mag. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Pretty yellow and orange, 2 delta mag, wide separation |
|
|
|
|
STF981 |
|
|
8m7 |
9m0 |
0.9'' |
119° |
2016 |
Gem |
06h55m28.54s |
+30°09'42.30" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Very close orange pair, equal magnitude. Clean split, ~1". |
|
|
|
|
STT159, 15 Lyn |
|
AB |
4m5 |
5m5 |
0.7'' |
236° |
2017 |
Lyn |
06h57m16.60s |
+58°25'23.00" |
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (200x) |
nicht getrennt im April 2020 |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
relativ einfach |
|
|
|
|
A1061 & STF1000 |
A1061 |
AB |
8m9 |
9m1 |
0.6'' |
42° |
1999 |
Gem |
06h59m21.15s |
+25°14'00.20" |
|
|
|
STF1000 |
AB-C |
8m1 |
9m0 |
22.1'' |
67° |
2016 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
STF1000 (AB-C): bei 32x ein bequem getrenntes Pärchen - Komponente AB kühlweiß - Komponente C im Osten ist eine dreiviertel Größenklasse schwächer und grauweiß |
|
Sarah Gebauer
Germany |
100mm (73x) |
STF1000 (AB-C): sieht fast so aus, als hätte die westliche Komponente einen Gelbstich, bei 73x weit und deutlich getrennt |
|
|
|
|
STT163 |
|
AB |
7m2 |
8m2 |
0.2'' |
99° |
1997 |
Mon |
07h01m09.85s |
+11°46'28.70" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Not perfectly round AB, a faint bluish haze in the diffraction to the south. Marginal |
|
|
|
|
BU573 |
|
|
7m2 |
7m8 |
0.8'' |
311° |
2018 |
Mon |
07h01m49.89s |
-10°52'56.30" |
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (247x) |
schwach gekerbt |
|
|
|
★
|
A2462 |
|
AB |
9m2 |
9m0 |
0.2'' |
250° |
2019 |
Gem |
07h02m37.42s |
+15°58'26.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
Short period list. Notched, noticeable magnitude difference, B star pointed in direction of apex of right triangle it forms with two other eighth magnitude stars. Light orange stars |
|
|
|
|
STF1037 |
|
AB |
7m2 |
7m3 |
0.8'' |
304° |
2019 |
Gem |
07h12m49.08s |
+27°13'30.20" |
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (260x) |
eingekerbt |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
bei 200x trennbar, beide gelb |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
leichter, gleich hell |
|
|
|
|
STT170 |
|
AB |
7m4 |
7m7 |
0.6'' |
288° |
2018 |
CMi |
07h17m38.51s |
+09°17'31.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Notched, near equal at 333x. At 667x, hairline split very easy to see, near equal white stars |
|
|
|
|
STF1066, delta Gem, 55 Gem |
|
|
3m5 |
8m2 |
5.4'' |
234° |
2017 |
Gem |
07h20m07.39s |
+21°58'56.40" |
|
|
Robert Zebahl
Leipzig (Germany) |
55mm (71x) |
Large difference in brightness. The fainter component was well separated, but just a very tiny star. |
|
Robert Zebahl
Leipzig (Germany) |
102mm (160x) |
Easy to separate with relatively large distance. The companion appeared as a tiny, faint star. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (200x) |
Nicht gesehen, wahrscheinlich ist der Begleiter zu schwach für leicht diesigen Himmel |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
erster Ring in SSW heller, zweiter nur an dieser Stelle sichtbar |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Wasat = Delta Geminorum: Pretty white-yellow and red-orange pair, PA to west, ~4". |
|
|
|
★★★
|
STF1110, alpha Gem, 66 Gem, Castor |
|
AB |
1m9 |
3m0 |
5.5'' |
53° |
2019 |
Gem |
07h34m35.86s |
+31°53'17.80" |
|
|
|
|
AC |
1m9 |
9m8 |
69.8'' |
163° |
2017 |
|
|
|
|
|
|
|
AD |
1m9 |
10m1 |
179.8'' |
221° |
2017 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
55mm (27x) |
AB: At 27x slight difference in brightness visible. Double star appeared as '8'. At 38x clearly split, but tight. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (44x) |
AB: At 44x the double star appeared as an '8'. At 100x clearly split with noticeable difference in brightness. Both components appeared white. |
|
Christopher Hay
Seeheim (Germany) |
76mm (50x) |
AB, 18 February 2021: At 23x oval-elongated with clear position of component A. At 50x finely split. At 83x best sight with first diffraction rings slightly overlapping. At 100x nice pattern of the Airy disks and the overlapping first and second diffraction rings of both components. |
|
René Merting
Drachhausen (Germany) |
100mm (107x) |
AB: bei 32x wirkt der Stern leicht länglich - bei 107x stehen die beiden Sterne schön eng mit überlagernden Beugungsscheibchen, die Komponenten sind dennoch getrennt erkennbar - Komponente B im Osten ist eine halbe Magnitude schwächer - ganz schwacher Farbkontrast |
|
Uwe Pilz
Leipzig (Germany) |
105mm (144x) |
AB: blauweiß-weiß |
|
Winfried Kräling
Marburg (Germany) |
127mm (250x) |
AB: 13.03.2017: Beide Komponenten gelblich mit geringem Helligkeitsunterschied, bereits bei V=60x getrennt. |
|
Christopher Hay
Seeheim (Germany) |
180mm (200x) |
AB: Two fat spotlights in space. Component B seems greenish at first sight (using a first-class reflector free of chromatic aberration), and certainly has a different hue than component A. The second diffraction rings of A and B meet. |
|
|
|
★★
|
STF1126 |
|
AB |
6m5 |
7m0 |
0.9'' |
176° |
2019 |
CMi |
07h40m06.99s |
+05°13'51.90" |
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
beide gelb. Es war schwierig, die hellere Komponente zu erkennen. Direkt neben Prokyon. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Wow, very close <1" hair-split, near equal brightness |
|
|
|
|
HO247 |
|
|
7m7 |
9m2 |
0.4'' |
259° |
2010 |
Gem |
07h46m07.95s |
+21°07'19.20" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
Clean split with seeing, 1 delta mag, fairly bright pair. I found the apodizing mask worked better than the 8-inch mask, gave more resolving power. The 8-inch was only snowman |
|
|
|
★
|
BU101, 9 Pup |
|
|
5m6 |
6m5 |
0.4'' |
307° |
2019 |
Pup |
07h51m46.31s |
-13°53'52.80" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
9 Pup. Elongated to notched, orientation correct, light orange. Very tough. [B is coming off it's furthest orbit and will be exceptionally difficult in 10 years, but easier in 15 years] |
|
|
|
|
STT182 |
|
|
7m8 |
7m9 |
0.9'' |
9° |
2017 |
CMi |
07h52m42.12s |
+03°23'02.20" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Compact white pair, more near equal than Sky Tools says, white, easy split |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Very close, ~1", near equal brightness white. |
|
|
|
★
|
STT185 |
|
|
7m1 |
7m3 |
0.4'' |
21° |
2019 |
CMi |
07h57m16.39s |
+01°07'37.30" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
Without the apodizing mask I get a clean split with seeing but constant split with the mask. Light orange stars, noticeable mag difference |
|
|
|
★
|
BU581 |
|
AB |
8m5 |
8m8 |
0.4'' |
226° |
2018 |
Cnc |
08h04m23.10s |
+12°17'23.80" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Light orange near equal, very small, elongated to notched. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
With apodizing mask. Beautiful clean split, almost wide, light orange stars, slight mag difference. There is a third 2x fainter star further out, might be plus one. Wow. [3rd is AB-C, 8.46/11.78 5.5"] |
|
|
|
|
STF1187 |
|
AB |
7m2 |
8m0 |
3.1'' |
20° |
2019 |
Cnc |
08h09m30.45s |
+32°13'18.80" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (57x) |
Split. Components very tight with noticeable difference in brightness. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Yellow and orange, 1 delta mag, 5" |
|
Karsten Kopp
Köln (Germany) |
600mm (180x) |
Noch gut zu trennender Doppelstern mit leichtem Helligkeitsunterschied. Komponente A leuchtet gelblich weiß und Komponente B gelb. |
|
|
|
★★★
|
zeta Cnc, 16 Cnc |
STF1196 |
AC |
5m3 |
5m8 |
6.2'' |
62° |
2020 |
Cnc |
08h12m12.79s |
+17°38'51.20" |
|
|
|
STF1196 |
AB-C |
4m9 |
5m8 |
6.0'' |
64° |
2020 |
|
|
|
|
|
|
STF1196 |
AB |
5m3 |
6m2 |
1.0'' |
5° |
2020 |
|
|
|
|
|
|
HUT1 |
Ca-Cb |
6m2 |
7m1 |
0.3'' |
32° |
2019 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (133x) |
The wide pair AB-C is already separable at 22x. The pair AB shows at 133x two clearly overlapping diffraction disks with small difference in brightness, but without any notch. |
|
Christopher Hay
Seeheim (Germany) |
71mm (32x) |
AB-C: Finely split. AB yellowish. Substantial delta-mag. |
|
Robert Zebahl
Leipzig (Germany) |
102mm (86x) |
AB-C: Easy to separate. A: light grey, B: pale orange. |
|
Stefan Loibl
Rosenheim (Germany) |
102mm (164x) |
AB-C clearly split, AB obviously elongated but not split |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
weißblau-gelb-gelb |
|
Robert Zebahl
Leipzig (Germany) |
120mm (67x) |
AB-C: Evident difference in brightness, easy to split. Both components of similar color. |
|
Robert Zebahl
Leipzig (Germany) |
120mm (200x) |
AB: Very tight. The Airy disks were still touching. Slight difference in brightness. Extremely beautiful triple star! |
|
Winfried Kräling
Marburg (Germany) |
127mm (250x) |
08.04.2018: Sehr schön, 3-fach Stern, A = weißgelb, B = weißgelb, C = weißgelb |
|
Sarah Gebauer
Germany |
150mm (83x) |
AB-C: bei 83x sind AB-C sauber getrennt, laut Atlas 2020 6,1'' Abstand, die Komponenten A und B mit 1,1'' lassen sich nicht trennen, viele schöne Feldsterne dabei |
|
Christopher Hay
Seeheim (Germany) |
180mm (200x) |
AB: Hair-fine split. A and B both yellowish-white. C wide from AB, bluish-white, nice colour contrast to AB. |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (200x) |
AB-C: AB (1,1") nicht bemerkt |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Ca-Cb: not quite round, oval/olive shaped. It is the AB-C of STF 1196. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
AB: Triple, all near equal magnitude, yellow-white. AB ~0.8", hair split. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
AC: Triple, all near equal magnitude, yellow-white. AC ~6", wide split. |
|
Karsten Kopp
Köln (Germany) |
600mm (257x) |
AB: Die Komponenten AB-C bei etwas größerem Helligkeitsunterschied einfach zu trennen und auch schön anzusehen. Sterne erstrahlen weißlich gelb. Komponente AB war nicht zu trennen. |
|
|
|
★
|
A551, LO Hya |
|
AB |
7m0 |
7m1 |
0.4'' |
63° |
2018 |
Hya |
08h28m29.16s |
-02°31'01.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
LO Hya. With apodizing mask. Easy split, noticeable half delta mag. Another fainter star further out likely +1 [The +1 is STF 1233 AB-C, 6.42/10.49 18.3". AB at furthest extent of orbit, will tighten considerably the next 20 years] |
|
|
|
|
AG154 |
|
|
9m6 |
9m8 |
2.7'' |
1° |
2019 |
Cnc |
08h36m55.78s |
+23°14'49.10" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
HO Cnc. Near equal well separated, light orange stars |
|
|
|
★★★
|
11 Hya, epsilon Hya |
SP1 |
AB |
3m5 |
5m0 |
0.2'' |
241° |
2018 |
Hya |
08h46m46.51s |
+06°25'07.70" |
|
|
|
STF1273 |
AB-C |
3m5 |
6m7 |
2.9'' |
311° |
2020 |
|
|
|
|
|
|
STF1273 |
AB-D |
3m5 |
12m5 |
18.1'' |
201° |
2017 |
|
|
|
|
|
|
STF1273 |
AB-E |
3m5 |
10m8 |
340.5'' |
2° |
2015 |
|
|
|
|
|
|
STF1273 |
AB-F |
3m5 |
10m4 |
406.5'' |
265° |
2015 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (133x) |
AB-C: Not split. Although a slight brightening was visible in the first diffraction ring, it could also have come from slight coma of the refractor. |
|
Sarah Gebauer
Germany |
100mm (200x) |
AB-C: ist ein heller Stern vom Hydra-Kopf, nicht zu trennen, vermutlich, weil die Komponente AB zu hell strahlt |
|
Robert Zebahl
Leipzig (Germany) |
102mm (160x) |
AB-C: 2020-03-27: The much fainter companion is well visible as an almost round knot directly at the diffraction ring of the primary component. Very nice sight. The seeing was mediocre (3/5). |
|
Uwe Pilz
Leipzig (Germany) |
105mm (200x) |
AB-C: bei 144x schwierig |
|
Robert Zebahl
Leipzig (Germany) |
152mm (150x) |
AB-C: 2020-03-27: The companion is immediately visible as a tiny star close to the primary component. Due to the chromatic aberration of the achromat, there is a slight tendency to outshine. Nevertheless a nice view. The seeing was mediocre (3/5). |
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
AB-C: Epsilon Hya A is bright orange-yellow, B is much fainter and a little blue, ~3". [SP 1 AB is 3.49/5.00 0.2" not seen] |
|
|
|
★
|
A2552 |
|
|
9m1 |
8m5 |
0.3'' |
208° |
2018 |
Hya |
08h48m40.30s |
+00°56'31.00" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
Wow fine split. Pale yellow A and blue B, about one delta mag. Nice split, amazing [82.4 year period] |
|
|
|
|
STF1282 |
|
AB |
7m6 |
7m8 |
3.5'' |
279° |
2019 |
Lyn |
08h50m44.28s |
+35°04'15.40" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (57x) |
Clearly separated, but close together with very little difference in brightness. The double star forms an acute-angled triangle together with two other stars. |
|
|
|
★
|
STF1291, 57 Cnc |
|
AB |
6m1 |
6m4 |
1.5'' |
310° |
2019 |
Cnc |
08h54m14.65s |
+30°34'45.80" |
|
|
|
|
AB-C |
5m5 |
9m2 |
54.6'' |
204° |
2015 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (133x) |
AB: Immediately apparent as a double star. Diffraction disks overlapping slightly ('8'). Difference in brightness visible. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (144x) |
gelb |
|
Sarah Gebauer
Germany |
150mm (125x) |
AB: sowohl bei 83x als auch bei 125x knapp vorm Trennen |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
AB: 57 Cnc. Very nice pair, strong orange yellow colors, ~1 delta mag, bright, nice close split |
|
|
|
|
STF1280 |
|
AB |
8m8 |
9m1 |
3.4'' |
357° |
2019 |
UMa |
08h55m24.82s |
+70°47'39.20" |
|
|
|
|
AC |
8m8 |
12m4 |
398.4'' |
88° |
2015 |
|
|
|
|
|
|
|
BC |
9m1 |
12m4 |
398.5'' |
88° |
2015 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (67x) |
AB: 2021-04-03: Rather faint double star with components still pretty close together and little difference in brightness. |
|
René Merting
Drachhausen (Germany) |
100mm (72x) |
AB: ein knapp getrenntes Sternpaar - beide Sterne sind annähernd gleich hell und strahlen rein weiß - bei 144x eine ordentlichere Trennung, Komponente A im Süden strahlt in einem wärmeren Weiß |
|
|
|
|
iota UMa, 9 UMa, Talitha |
HJ2477 |
A-BC |
3m1 |
9m2 |
2.4'' |
90° |
2017 |
UMa |
08h59m12.45s |
+48°02'30.60" |
|
|
|
HU628 |
BC |
9m9 |
10m1 |
0.9'' |
206° |
2017 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
152mm (300x) |
A-BC: 2020-04-24: The seeing (3/5) was not good enough for a split. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (213x) |
A-BC: Iota UMa = Talitha. Using 25mm occulting bars with barlow, no mask, putting the bright star's diffraction spikes under the bars, I can see the hard point of the B star, brighter & closer than Procyon B outside of A's glare. One other field star. [HJ 2477's period is 2735 years. The short period is BC is HU 628 9.90/10.10 0.9" 39 year period -- how in the world did he see that?] |
|
|
|
★★
|
STF1306, sigma 2 UMa, 13 UMa |
|
AB |
4m9 |
8m8 |
4.3'' |
348° |
2016 |
UMa |
09h10m23.53s |
+67°08'03.30" |
|
|
|
|
AC |
4m9 |
10m3 |
197.8'' |
148° |
2003 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (100x) |
AB: Companion almost permanently visible as elongated, non-condensed brightening of the first diffraction ring of the primary component at the correct position angle. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (144x) |
AB: sehr schwierig bei 88x |
|
|
|
|
STF1321 |
|
AB |
7m8 |
7m9 |
16.9'' |
99° |
2019 |
UMa |
09h14m22.79s |
+52°41'11.80" |
|
|
|
|
AC |
7m8 |
14m5 |
145.7'' |
64° |
2010 |
|
|
|
|
|
|
|
AD |
7m8 |
11m9 |
136.4'' |
129° |
2015 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
16x70 |
AB: 2020-07-05: Very nice view, striking, easily separable. A slight difference in brightness is visible. At first glance the double star appeared noticeably orange compared to the surrounding stars, on closer look a color difference of the two components was visible: orange & rather white. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (22x) |
AB: 2020-04-11: At 22x pretty wide pair with equally bright components. Striking colors: slightly orange & white-bluish, but it was a bit difficult to assign the colors to the components. At 44x slightly better color perception. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (31x) |
AB: 2020-04-19: Together with STF1312 in one field of view. At 22x very nice sight, easy to separate, attractive separation. Immediately apparent. A color difference is visible: dark yellow, orange. Also beautiful to see at 44x. Best view at 31x. |
|
|
|
|
STF1332 |
|
|
7m9 |
8m1 |
5.9'' |
29° |
2015 |
Cnc |
09h17m19.21s |
+23°39'09.80" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Near equal wide pair, ~5", maybe half delta mag |
|
|
|
★
|
STF3121 |
|
AB |
7m9 |
8m0 |
0.5'' |
205° |
2017 |
Cnc |
09h17m53.45s |
+28°33'37.70" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
IP Cnc Split at 533x, used 1067x to recheck orientation. With apodizing mask. Light yellow-orange stars, nice and clean split, very slight mag difference. Real nice |
|
|
|
★
|
STF1334, 38 Lyn |
|
AB |
3m9 |
6m1 |
2.6'' |
224° |
2019 |
Lyn |
09h18m50.64s |
+36°48'09.30" |
|
|
Uwe Pilz
Leipzig (Germany) |
60mm (198x) |
Aufhellung im ersten Ring |
|
Robert Zebahl
Leipzig (Germany) |
63mm (140x) |
Fainter companion only seen as permanent brightening on the first diffraction ring. |
|
Christopher Hay
Seeheim (Germany) |
71mm (32x) |
Figure-8 with clear positions and delta-mags of components. Bluish-white. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
gelb, trennbar bei 66x |
|
Christopher Hay
Seeheim (Germany) |
180mm (113x) |
Clean split, large delta-mag. Separation ca. 1.5 times that of nearby STF1333. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
38 Lyn: Very bright A with 3x fainter dull white B, 3-4" |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
38 Lyn. A is a bright light yellow and B is a ~2 delta mag orange-yellow, well split and bright |
|
|
|
|
STF1338 |
|
AB |
6m7 |
7m1 |
1.1'' |
313° |
2018 |
Lyn |
09h20m59.40s |
+38°11'17.90" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Wonderful light yellow stars, near equal, ~1" separation |
|
|
|
|
STT201 |
|
AB |
8m5 |
9m5 |
1.4'' |
206° |
2017 |
Leo |
09h23m54.55s |
+27°53'54.90" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
Extremely fine split, with seeing only, finest of the night, significant mag difference, just above 1" separation |
|
|
|
★★
|
STF1355 |
|
|
7m7 |
7m8 |
1.8'' |
357° |
2018 |
Hya |
09h27m16.69s |
+06°13'59.00" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (100x) |
2020-04-10: At 67x clearly elongated, equally bright. At 80x detectable notch. At 100x and 133x clearly visible as figure '8'. Near the double star STF 1348. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (144x) |
Im selben Aufsuchfeld wie stf1348, ähnliche Erscheinung |
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Light yellow pair, near equal, very nice, ~2" |
|
|
|
|
HU1128, 11 LMi |
|
|
4m8 |
12m5 |
6.7'' |
61° |
2012 |
LMi |
09h35m39.50s |
+35°48'36.40" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
11 LMi: Very faint A & extremely faint B, wide separation. From the orbital chart this is approaching maximum elongation now (May 2017), by 2143 it will be 1". Only 39 light years away. |
|
|
|
★
|
STF1362 |
|
|
7m0 |
7m2 |
4.9'' |
125° |
2017 |
Dra |
09h37m56.18s |
+73°04'49.50" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (31x) |
2020-04-21: At 22x extremely tight, but separable. At 31x very fine separation. Both components appeared white. Very nice sight! At 57x well separated, similarly bright. One component appeared white-yellowish with a hint of orange, the other more white. |
|
|
|
|
STF1374 |
|
AB |
7m3 |
8m7 |
2.8'' |
311° |
2017 |
LMi |
09h41m21.88s |
+38°57'01.90" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (100x) |
2020-04-01: Separable at 67x, but difficult due to the bright primary component. Clearly separable at 80x and higher magnifications with a significant difference in brightness. The companion stands close to the primary component and appears as a tiny star. Nice view. |
|
Robert Zebahl
Leipzig (Germany) |
120mm (168x) |
At 50x elongated, at 75x seen as '8'. At 168x clearly split with obviously fainter component. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Pretty orange-yellow stars, ~2 delta mag, ~3 separation |
|
|
|
|
HO369 |
|
AB |
8m0 |
9m8 |
0.4'' |
99° |
2011 |
LMi |
09h51m09.34s |
+36°29'20.80" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
With 533x I can tell this is not single, but the elongation is too tentative. At 1067x the best I can manage is elongated notched, with seeing. Seeing and transparency are not good enough |
|
|
|
|
STT208, phi UMa |
|
|
5m3 |
5m4 |
0.4'' |
310° |
2019 |
UMa |
09h52m06.36s |
+54°03'51.40" |
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (260x) |
länglich, schwierig |
|
|
|
|
AC5, gam Sex |
|
AB |
5m4 |
6m4 |
0.5'' |
39° |
2019 |
Sex |
09h52m30.47s |
-08°06'17.70" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
Gamma Sex: I get a split with seeing of nearly equal orange yellow stars, only momentarily |
|
|
|
|
STT213 |
|
AB |
8m6 |
9m8 |
1.1'' |
121° |
2017 |
Leo |
10h13m08.88s |
+27°25'10.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
Bright yellow A, ~2 magnitudes fainter B, very wide separation. |
|
|
|
|
STT215 |
|
|
7m2 |
7m5 |
1.5'' |
176° |
2019 |
Leo |
10h16m16.05s |
+17°44'24.60" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (133x) |
Appeared partly separated, partly as '8'. Brightness seemed to be equal. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
trennbar bei 120x |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
very close split (1.7" separation) near equal bright white stars |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Near equal light yellow stars, ~1.5" |
|
|
|
★
|
STF1423 |
|
|
9m4 |
10m1 |
0.7'' |
308° |
2018 |
Leo |
10h19m10.64s |
+20°33'48.10" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Tough! Elongated to hairline split. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
Split with seeing, light orange A and very faint, ~3 delta mag B, very close, within diffraction ring <1" |
|
|
|
★★
|
STF1424, gamma Leo, 41 Leo, Algieba |
|
AB |
2m4 |
3m6 |
4.7'' |
127° |
2020 |
Leo |
10h19m58.35s |
+19°50'29.40" |
|
|
Robert Zebahl
Leipzig (Germany) |
55mm (38x) |
At 38x split, but very tight with noticeable difference in brightness. At 56x and higher beautiful view of both components, which seemed to have similar colors. |
|
Robert Zebahl
Leipzig (Germany) |
55mm (59x) |
Very nice unequal double. A appeared yellow-orange, B rather white-bluish. |
|
Christopher Hay
Seeheim (Germany) |
60mm (58x) |
At 25x Algieba is already very elongated. At 58x a sliver of dark between the components, with clear brightness difference. At 70x split becomes more stable, but view not so pleasing as at 58x. Both components display vivid orange. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (100x) |
At 67x still a relatively close pair, but well separated with quite a clear difference in brightness. At 100x easy to separate and visible color difference: A yellowish to slightly orange, B white-yellowish. |
|
Robert Zebahl
Leipzig (Germany) |
102mm (125x) |
Very nicely separated with wonderful contrast in brightness and color. Primary component slightly orange, companion yellowish. |
|
Stefan Loibl
Rosenheim (Germany) |
102mm (164x) |
very bright double star, slight colour contrast |
|
Uwe Pilz
Leipzig (Germany) |
105mm (120x) |
schon bei 37x sehenswert; trennbar bei 55x; orange-blauweiß |
|
Robert Zebahl
Leipzig (Germany) |
120mm (66x) |
At 48x easily seen as double star. It appeared as '8'. At 66x pretty tight with visible difference in brightness. |
|
Winfried Kräling
Marburg (Germany) |
127mm (250x) |
08.04.2018: merklicher Helligkeitsunterschied, A = gelb-orange, B = gelb-orange |
|
Sarah Gebauer
Germany |
150mm (83x) |
bei 83x sauber getrennt, ein leichter Farbunterschied (Weiß und helles Gelb) sichtbar |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
Algieba: Bright yellow and yellow-orange pair, 1 delta mag, 4-6" |
|
René Merting
Drachhausen (Germany) |
320mm (240x) |
bei 240x sehe ich zwei ordentlich getrennte Sterne (naja, nicht wirklich Sterne, sondern wild zappelnde Glitzerbällchen) - Komponente A strahlt in einem zarten Gelb, B ist weiß - zurück auf 144x sehe ich nur ein Stäbchen mit leichter Einschnürung, so wild tanzen die Sterne |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Algieba. Very bright, A is yellow-orange and B is a blazing white orange, like a fire |
|
|
|
★
|
STF1426 |
|
AB-C |
7m3 |
9m4 |
7.6'' |
9° |
2018 |
Leo |
10h20m32.32s |
+06°25'47.60" |
|
|
|
|
AB |
8m0 |
8m3 |
0.9'' |
313° |
2018 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
100mm (107x) |
AB: bei 213x in guten Momenten als Stäbchen erkennbar
AB-C: bei 107x ist nördlich vom Hauptstern AB eine gut 2 Größenklassen schwächere Komponente erkennbar - AB ist weiß, C ist grau |
|
Robert Zebahl
Leipzig (Germany) |
102mm (160x) |
AB-C: Quite large angular distance and therefor easy to separate. The C component was pretty faint. |
|
Robert Zebahl
Leipzig (Germany) |
102mm (160x) |
AB: At first glance elongated, on closer look visible as '8'. |
|
Stefan Loibl
Rosenheim (Germany) |
102mm (164x) |
AB-C easily split, A-B not detectable as double |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
A-B länglich, C weit |
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
AB: Split with seeing, white, very close, near equal. Part of plus one, a two delta mag not far away |
|
|
|
★★
|
STT216 |
|
|
7m4 |
10m3 |
2.3'' |
231° |
2016 |
Leo |
10h22m43.81s |
+15°20'39.70" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
A white and bright (7.3), B red & much fainter (10.3), a close split (2"). |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Yellow and very much fainter orange B, 1 delta mag, ~4" separated |
|
|
|
★
|
STF1429 |
|
|
9m1 |
9m3 |
0.8'' |
155° |
2017 |
Leo |
10h25m01.79s |
+24°36'44.10" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Very tough. Faint, need averted vision to brighten and sharpen. Elongated to clean split in the best moments with seeing, near equal magnitude |
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
Elongated to hairline at 333x, split at 533x. Light orange stars, near equal |
|
|
|
★
|
STT217 |
|
|
7m8 |
8m6 |
0.8'' |
151° |
2019 |
Leo |
10h26m53.01s |
+17°13'09.90" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Just split cleanly, ~1 delta mag, yellow-tinged white stars. Nice close pair |
|
|
|
★
|
STF1439 |
|
|
8m3 |
8m9 |
1.4'' |
73° |
2019 |
Leo |
10h30m06.42s |
+20°48'04.30" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Very clean images, light yellow-orange stars, ~1 delta mag, well split, very pretty |
|
|
|
★
|
STF1454 |
|
|
9m0 |
11m0 |
1.3'' |
358° |
2016 |
LMi |
10h38m11.10s |
+26°36'24.80" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Quite tough: averted vision only, very tight, similar magnitude, when seeing stills. |
|
|
|
|
STF1457 |
|
|
7m7 |
8m2 |
1.9'' |
334° |
2019 |
Sex |
10h38m43.14s |
+05°44'02.90" |
|
|
René Merting
Drachhausen (Germany) |
100mm (142x) |
bei 107x sehe ich in guten Momenten eine Stäbchen, manchmal auch schon leichte Einschnürungen - bei 142x zeigt sich das Sternpaar deutlich als 8 und mit etwas Geduld auch getrennt - B steht im NO und ist eine halbe Größenklasse schwächer - bei 213x dann eindeutige Trennung |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Attractive bright sunny yellow pair, more than 2" separation, slight mag difference |
|
|
|
|
A2768 |
|
|
6m9 |
8m4 |
0.6'' |
238° |
2019 |
Sex |
10h42m37.53s |
+03°34'58.90" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
Feels like a not round disk, but uncertain. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
34 Sex. Surprisingly difficult. Light orange A and a very small 2 delta mag pin prick appears within the first diffraction ring, so about 0.5" separation. Very tough. With seeing only |
|
|
|
|
A2771 |
|
|
9m2 |
9m7 |
0.6'' |
112° |
2018 |
Sex |
10h44m38.71s |
+05°29'55.00" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
Elongated with 333x but a good clean split with 533x. Stars settle to fine points with seeing , ~1 delta mag, ~0.5" separation |
|
|
|
|
STT228 |
|
|
8m2 |
8m9 |
1.7'' |
170° |
2017 |
Leo |
10h47m16.93s |
+22°34'32.00" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (133x) |
2021-04-21: Slightly elongated. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
With fine focus, split with seeing, ~1 delta mag, ~1" separation. Pretty tough needed 533x to split, elongated at 333x |
|
|
|
★★
|
STT229 |
|
|
7m6 |
7m9 |
0.6'' |
262° |
2019 |
UMa |
10h48m02.55s |
+41°06'35.80" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Just wider than a thin hair split of equal white stars, ~8th mag. 0.63"! in 40 years it will be 0.2" |
|
|
|
★
|
UC2059 & HDS1574 & COU1422 |
UC2059 |
AB |
7m5 |
10m7 |
46.9'' |
46° |
2015 |
UMa |
11h01m45.73s |
+36°40'41.60" |
|
|
|
HDS1574 |
Aa-Ab |
7m6 |
11m1 |
0.3'' |
99° |
2019 |
|
|
|
|
|
|
COU1422 |
Ba-Bb |
11m2 |
11m5 |
0.6'' |
38° |
2008 |
|
|
|
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
UC2059 (AB): Pretty well separated, 1.5 delta mag, not remarkable as I hoped given the odd designation. |
|
Mark McCarthy
Fremont (California/USA) |
762mm (1219x) |
COU1422 (Ba-Bb): Cou 1422 is a pair of 11th magnitude stars very close to UC 2059 -- best I could get of Cou 1422 was an elongation with the seeing. Tried 1219x without improving the elongation. |
|
|
|
★★
|
BU1077, alpha UMa, 50 UMa, Dubhe |
|
AB |
2m0 |
5m0 |
0.8'' |
342° |
2017 |
UMa |
11h03m43.84s |
+61°45'04.00" |
|
|
|
|
AC |
2m0 |
7m2 |
370.0'' |
205° |
2015 |
|
|
|
|
|
Christopher Hay
Seeheim (Germany) |
7x45 |
AC: AC: Very wide apart but still feel as if belonging together. A golden-yellow, C seems blue, a very attractive pair.
A, B and C are a physical triple system at a distance to us of 123 light years. This is incidentally almost exactly the same distance to us as SMA75 AB, a further wide binocular pair in UMa. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (22x) |
AC: 2020-04-07: Very wide, uneven & inconspicuous pair. A appeared white-yellowish, for B I could not detect any color. |
|
|
|
★★
|
HO378 |
|
AB |
8m2 |
9m1 |
1.1'' |
237° |
2017 |
UMa |
11h04m57.29s |
+38°24'38.20" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
In a pretty cluster in the finder (~ 12 stars loose and poor, wide magnitude range, triangle shape). Pair is a fine split 1 delta mag 1", ice blue A and slightly yellow B. |
|
|
|
|
STF1510 |
|
|
7m7 |
9m0 |
5.7'' |
328° |
2019 |
UMa |
11h08m00.06s |
+52°49'17.90" |
|
|
René Merting
Drachhausen (Germany) |
100mm (64x) |
bei 32x wirkt der Stern leicht länglich - bei 64x dann gelingt die Trennung - Komponente B hängt nordwestlich über A und ist mehr als eine Größenklasse schwächer - ein schönes enges Paar bei dieser Vergrößerung - B wirkt trotz des Größenunterschiedes nicht so schmutzig grau, wie es sonst immer ist |
|
|
|
★
|
STF1517 & BU1431 |
STF1517 |
AB |
7m5 |
8m0 |
0.7'' |
314° |
2017 |
Leo |
11h13m40.99s |
+20°07'43.30" |
|
|
|
BU1431 |
AB-C |
7m5 |
10m8 |
246.1'' |
97° |
2015 |
|
|
|
|
|
Sarah Gebauer
Germany |
100mm (200x) |
STF1517 (AB): die Komponenten AB und C lassen sich natürlich problemlos bei geringer Vergrößerung trennen, für A und B reichen auch 200x nicht aus (Beobachtungsversuch erfolgte ohne vorherige Recherche, denn 0,7'' schafft mein Refraktor nicht) |
|
Robert Zebahl
Leipzig (Germany) |
102mm (187x) |
STF1517 (AB): 2020-03-28: At 187x the double star immediately appears elongated, but without notching. On closer observation, the slight difference in brightness could be detected. Not better at higher magnifications. Observation at quite good seeing (4/5). |
|
Uwe Pilz
Leipzig (Germany) |
105mm (200x) |
STF1517 (AB): länglich |
|
Robert Zebahl
Leipzig (Germany) |
152mm (225x) |
STF1517 (AB): 2020-03-27: Clearly elongated. In some moments the double star appeared notched with a small difference in brightness. Observation at moderate seeing (3/5). |
|
Mark McCarthy
Fremont (California/USA) |
317mm (340x) |
STF1517 (AB): Very tight, hair split small orange stars of equal magnitude. Wow! |
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
STF1517 (AB): Touching disks with 333x, clean slit with 533x, ~0.5" separation, Yellow-orange stars, near equal |
|
|
|
★★
|
STF1523, xi UMa, 53 UMa, Alula Australis |
|
AB |
4m3 |
4m8 |
2.1'' |
155° |
2019 |
UMa |
11h18m10.90s |
+31°31'45.00" |
|
|
Robert Zebahl
Leipzig (Germany) |
55mm (83x) |
2019-02-09: Already seen as '8' at 83x. At 125x the overlapping of both Airy disks was visible, but also a slight difference in brightness. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (100x) |
2018-02-18: Very close together with similar brightness. At first glance seen as an '8', looking closer I partly split both components. Similar view also at 128x. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (133x) |
2020-03-15: Splendid sight! Beautifully separated with almost touching diffraction disks. The rather small difference in brightness was well visible. The diffraction rings of both components coalesced. |
|
Robert Zebahl
Leipzig (Germany) |
102mm (160x) |
2020-03-16: Awesome! Bright with lovely, subtle diffraction rings. The distance between both components is a smaller than the diameter of the diffraction disk of the fainter component. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
Gemessen: 162° |
|
Robert Zebahl
Leipzig (Germany) |
120mm (168x) |
2018-02-14: Well split with slight difference in brightness. |
|
Robert Zebahl
Leipzig (Germany) |
152mm (129x) |
2019-02-06: Well split with visible difference in brightness. The colors of both components appeared equal. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Alula Australis. Short period. Pretty orange-yellow stars, ~half delta mag, ~2" separation |
|
|
|
|
STF1527 |
|
|
7m0 |
8m0 |
0.4'' |
296° |
2019 |
Leo |
11h18m59.91s |
+14°16'06.90" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
At 205x I know something is up with this star. At 333x it is overlapping disks and notched. At 533x it is still only notched but a bit larger and hazier |
|
|
|
|
STF1534 |
|
|
8m1 |
11m1 |
5.1'' |
315° |
2017 |
Leo |
11h21m49.34s |
+18°11'24.00" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Orange-yellow A, very faint B brightens with averted vision, but can hold direct. Wide, ~3 delta mag |
|
|
|
★
|
STF1536, iota Leo, 78 Leo |
|
AB |
4m1 |
6m7 |
2.2'' |
93° |
2019 |
Leo |
11h23m55.37s |
+10°31'46.90" |
|
|
|
|
AB-C |
4m1 |
11m1 |
332.1'' |
346° |
2015 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (133x) |
AB: 2020-03-28: The companion was well visible as brightening on the diffraction ring of the primary component. Sketch see observation with my 102mm refractor. |
|
Sarah Gebauer
Germany |
100mm (200x) |
AB: selbst bei 200x nur manchmal getrennt, eher schwierig mit Amiciprisma |
|
Robert Zebahl
Leipzig (Germany) |
102mm (125x) |
AB: 2020-03-28: At 125x clearly separated. A very beautiful sight! The companion was visible as almost round brightening close to the first diffraction ring of the primary component. The diffraction ring itself appeared very fine. At 224x also a very nice sight with a clear diffraction ring and the companion, which now appeared roundish. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (340x) |
AB: Quite close, very bright yellow white A and brownish B, split in A's diffraction ring |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
AB: Iota Leo. Light orange A and a richer orange B, ~2 delta mag, ~2" separation |
|
|
|
★★
|
STF1540, 83 Leo |
|
AB |
6m5 |
7m5 |
28.6'' |
146° |
2019 |
Leo |
11h26m45.32s |
+03°00'47.20" |
Stefan Loibl
Rosenheim (Germany) |
10x50 |
clearly split, little difference in magnitude |
|
Christopher Hay
Seeheim (Germany) |
10x56 |
On tripod. Neat split. Attractive 6.3° FOV with a sprinkling of several 5- to 7-mag stars to the south. Tau Leo widely split directly to southeast.
In 15x60 on tripod well split, component A slightly orange, forms a fine double-double with Tau Leo.
83 Leo is a physical double at a distance to us of only 58 light years. |
|
Robert Zebahl
Leipzig (Germany) |
16x70 |
2021-03-02: Splendid sight together with the double star tau Leo as well as 82 Leo. Beautiful star field. 83 Leo very nicely separated with moderate difference in brightness. Yellowish orange & slightly orange. |
|
René Merting
Drachhausen (Germany) |
18x70 |
ein ordentlich getrenntes und dennoch schön eng stehendes Pärchen - Komponente A ist leicht gelblich, Komponente B im SO ist eine dreiviertel Magnitude schwächer und grauweiß |
|
Robert Zebahl
Leipzig (Germany) |
55mm (16x) |
Wonderful double with slight color contrast in a very nice field. Together with tau Leo stunning view. Slightly unequal. A appeared white-yellowish, B rather grey-bluish. |
|
Mark McCarthy
Fremont (California/USA) |
80mm (13x) |
Finder split, in same field as Tau. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (340x) |
Yellow A and reddish B wide separation. |
|
René Merting
Drachhausen (Germany) |
320mm (72x) |
bei 72x steht das Paar zwar weit auseinander, es wirkt aber trotzdem gut zusammengehörend - Komponente B im SO ist eine dreiviertel Magnitude schwächer |
|
|
|
|
STT234 |
|
|
7m5 |
8m1 |
0.4'' |
182° |
2019 |
UMa |
11h30m49.91s |
+41°17'12.70" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
Surprisingly tough. Had indications of elongation at powers starting from 533x, but needed 1067x to get the clear bump, but even then it wasn't cleanly split |
|
|
|
★
|
STF1547, 88 Leo |
|
AB |
6m3 |
9m1 |
15.7'' |
330° |
2020 |
Leo |
11h31m44.94s |
+14°21'52.20" |
|
|
Robert Zebahl
Leipzig (Germany) |
55mm (42x) |
Well split with moderate distance. Primary component appeared white-yellowish. Pretty unequal pair. |
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
bei 32x erscheint Komponente B nordwestlich von A etwas mehr als knapp getrennt ganz schwach, bestimmt 3 Größenklassen Helligkeitsunterschied - Komponente A warmweiß, B ist grau |
|
Sarah Gebauer
Germany |
100mm (45x) |
fein, aber gut getrennt, die südliche Komponente ist deutlich heller, die nordwestliche zeigt sich als ganz schwacher Punkt |
|
Uwe Pilz
Leipzig (Germany) |
105mm (88x) |
gelb und violett |
|
Gerd Kohler
Langenzenn (Germany) |
254mm (76x) |
Der Doppelstern ist getrennt.Bläulich-weiß - orange-leicht rötlich. Etwas schwächerer Begleiter. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (340x) |
88 Leonis: A favorite! Yellow and blue pair, wide |
|
René Merting
Drachhausen (Germany) |
320mm (45x) |
bei 45x ein schönes enges Sternpaar, ordentlich getrennt - Komponente A strahlt hellgelb, B ist deutlich schwächer und empfiehlt sich mit einem Kupferton - ein schöner Farbkontrast |
|
|
|
★★
|
STT235 |
|
AB |
5m7 |
7m5 |
0.9'' |
43° |
2017 |
UMa |
11h32m20.76s |
+61°04'57.90" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Nice! Yellow and orange, 1.5 delta mag, split when seeing shows perfect disks. The stars both show albedo effects, look like suns / globes with shadowing. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
Short period. Pretty yellow A, orange B, ~1" ~2 delta mag |
|
|
|
★
|
STF1555 & HJ503 |
STF1555 |
AB |
6m4 |
6m8 |
0.8'' |
149° |
2016 |
Leo |
11h36m17.94s |
+27°46'52.70" |
|
|
|
HJ503 |
AB-C |
5m8 |
11m2 |
22.5'' |
156° |
2016 |
|
|
|
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
STF1555 (AB): blickweise gerade eben trennbar |
|
Mark McCarthy
Fremont (California/USA) |
317mm (443x) |
STF1555 (AB): Nice! AB tight hair-split white pair, with fainter & wide separated AB-C in a row to the east. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (443x) |
HJ503 (AB-C): Nice! STF 1555AB tight hair-split white pair, with fainter & wide separated C in a row to the east. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (553x) |
STF1555 (AB): Hairline split at 333x, clear split with 533x, very close ~0.5", bright. Part of plus one |
|
|
|
|
STF1553 |
|
|
7m7 |
8m2 |
6.2'' |
165° |
2018 |
UMa |
11h36m35.69s |
+56°08'07.30" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (31x) |
2020-04-19: At 22x medium bright double star with apparently similar bright components. At first sight visible as '8', on closer look separated. At 31x very fine split of the components with small difference in brightness. The two components appeared yellowish and slightly orange. |
|
René Merting
Drachhausen (Germany) |
320mm (45x) |
bei 45x sehe ich zwei fast gleich helle Sterne ganz eng beieinander stehen, da passt sprichwörtlich kein Blatt Papier dazwischen - bei 72x Helligkeitsunterschied eine knappe halbe Magnitude - ein ganz feiner Farbunterschied, Komponente A leicht weißgelblich, B im Osten wirkt ein bisschen grau |
|
|
|
|
STF1561 |
|
AB |
6m5 |
8m2 |
8.9'' |
247° |
2019 |
UMa |
11h38m44.90s |
+45°06'30.30" |
|
|
|
|
AC |
6m5 |
9m5 |
176.8'' |
90° |
2015 |
|
|
|
|
|
|
|
AD |
6m5 |
7m6 |
718.2'' |
76° |
2015 |
|
|
|
|
|
|
|
AE |
6m5 |
12m1 |
60.7'' |
338° |
2015 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (31x) |
AB: 2020-04-19: At 22x separated, but relatively tight together with significant difference in brightness. The pair stands close to 2 medium bright stars. Both components appear white. At 31x beautiful sight, the color of the components looks slightly different: white-yellowish with darker ( slightly orange?) companion. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (44x) |
AB: 2020-04-07: At 22x separated. The fainter companion is still very close to the primary component. At 44x beautiful sight with a clear difference in brightness. A: slightly yellowish, B: pale bluish. |
|
|
|
★
|
BU603 |
|
AB |
6m0 |
8m5 |
1.0'' |
329° |
2019 |
Leo |
11h48m38.71s |
+14°17'03.20" |
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (200x) |
sehr schwierig |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
nicht getrennt |
|
Mark McCarthy
Fremont (California/USA) |
203mm (533x) |
Suspected at 205x and 333x but needed higher magnification to see it. B is a very small point, with seeing, in the first diffraction ring. ~1" and ~3 delta mag |
|
|
|
|
STT241 |
|
|
6m8 |
8m7 |
1.8'' |
147° |
2017 |
UMa |
11h56m17.24s |
+35°26'53.30" |
|
|
Robert Zebahl
Leipzig (Germany) |
120mm (200x) |
2021-04-04: Well separated with noticeable difference in brightness. |
|
|
|
|
STF1606 |
|
|
7m4 |
7m9 |
0.7'' |
143° |
2019 |
CVn |
12h10m47.34s |
+39°53'29.50" |
|
|
Robert Zebahl
Leipzig (Germany) |
120mm (200x) |
2021-04-04: The double star appeared slightly elongated. |
|
|
|
|
STF1608 |
|
AB |
8m1 |
8m3 |
13.5'' |
221° |
2019 |
UMa |
12h11m27.76s |
+53°25'17.50" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (22x) |
2020-04-19: Easy to find, medium bright. At 22x quite conspicuous with rather small difference in brightness. A difference in color is clearly visible: slightly orange, white-bluish. At 31x nice color contrast with a little more intensive colors: light orange & light blue. |
|
René Merting
Drachhausen (Germany) |
320mm (72x) |
bei 72x ein schönes helles Pärchen, beide Komponenten sind gleich hell und zahncremeweiß |
|
|
|
|
STF1639 |
|
AB |
6m7 |
7m8 |
1.8'' |
323° |
2018 |
Com |
12h24m26.81s |
+25°34'56.70" |
|
|
|
|
AC |
6m7 |
11m4 |
91.4'' |
159° |
2015 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (133x) |
AB: 2020-04-04: The double star is clearly elongated, with the fainter companion attached to the primary component. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
AB: White and slightly blue pair, close, around 3" |
|
Mark McCarthy
Fremont (California/USA) |
317mm (443x) |
AB: Close but well split, 1.5 delta mag, ~2.5" |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
AB: Pretty yellow stars, ~2" separation, ~2 delta mag |
|
|
|
|
STF1643 |
|
AB |
9m0 |
9m4 |
2.7'' |
4° |
2018 |
Com |
12h27m13.72s |
+27°01'29.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Equal orange pair, ~3", PA to north. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Yellow-white stars, ~3" separation, ~2 delta mag |
|
|
|
|
STF1645 |
|
AB |
7m5 |
8m1 |
9.8'' |
156° |
2017 |
CVn |
12h28m04.45s |
+44°47'39.50" |
|
|
Gerd Kohler
Langenzenn (Germany) |
254mm (76x) |
Der Doppelstern ist getrennt. Bläulich-weiß - bläulich-weiß. Gleiche Helligkeit. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
Wide, bright yellowish-white pair, ~1 delta mag |
|
|
Berthold Fuchs
Wiesbaden (Germany) |
130mm |
easy DS |
|
|
|
|
STT251 |
|
|
8m3 |
9m3 |
0.7'' |
55° |
2018 |
CVn |
12h29m07.72s |
+31°23'25.40" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Decidedly not round disk -- there's also a brightening in the diffraction. Marginal. |
|
|
|
★★
|
WRH12, 23 Com |
|
|
5m0 |
6m9 |
0.3'' |
12° |
2016 |
Com |
12h34m51.12s |
+22°37'45.10" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
23 Com. I get a definite snowman and can tell the larger from the smaller star, pointed in a certain direction in relation to a faint field star. Short Period double |
|
|
|
|
STF1663 |
|
|
8m0 |
9m2 |
0.5'' |
65° |
2017 |
Com |
12h37m10.81s |
+21°11'52.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Hairline split, ~1 delta mag, tough. Light yellow-orange A |
|
|
|
★★★
|
STF1670, gamma Vir, 29 Vir, Porrima |
|
AB |
3m5 |
3m5 |
3.0'' |
357° |
2020 |
Vir |
12h41m39.60s |
-01°26'57.90" |
|
|
Christopher Hay
Seeheim (Germany) |
15x60 |
28 February 2021 at 3" separation: Very slight elongation. PA estimated at 5° (thus only 9° off, which seems fairly precise to me considering the low power of 15x and the minimal elongation, both of which make PA estimation difficult).
Intentionally flashed the eyes on the almost full Moon directly prior to observation in order to enhance acuity. Compared the sight of Porrima repeatedly with that of similarly bright Epsilon Vir (Vindemiatrix) to check whether the elongation is perhaps an artefact of the bincolulars or of my eyes, but no elongation seen there. |
|
Robert Zebahl
Leipzig (Germany) |
16x70 |
2021-05-23: Not even close to appear as a double star. The components are just too bright, the separation too small. |
|
Robert Zebahl
Leipzig (Germany) |
55mm (56x) |
2019-05-18: At 38x slightly elongated. At 56x touching diffraction disks. At 71x clearly separated with very small gap. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (44x) |
2021-05-26: At full aperture Porrima appears almost separated at 44x. The two diffraction disks are well visible. At 31x it is difficult to see any elongation at all.
At 40mm aperture Porrima can be seen clearly elongated already at 31x, from 67x it appears as an '8'. At only 22x Porrima is not visible as a double star. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (104x) |
2019-05-04: At 47x clearly visible as '8', at 73x split with almost touching diffraction disks. At 104x clearly separated, equally bright and pretty close together. The gap was smaller than the diameter of the diffraction disk. |
|
Robert Zebahl
Leipzig (Germany) |
102mm (125x) |
2019-05-01: Extremely nice double star! Equally bright and relatively close together. Both components appeared yellowish-white. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (200x) |
weiß-weiß, die nördliche Komponente ist eine Winzigkeit heller |
|
Winfried Kräling
Marburg (Germany) |
127mm (146x) |
21.04.2018: Bei V=100x erscheint dieser orangefarbene Doppelstern bereits als „8“. Bei V=146x ist Porrima voll getrennt. |
|
Sarah Gebauer
Germany |
150mm (166x) |
die 2,8'' entfernten Komponenten A und B konnten haarscharf bei 83x und 166x getrennt werden, beide strahlen gleich hell als ganz dichte Glanzpünktchen; Komponenten E und F wurden gesehen, C und D allerdings nicht; bei 83x waren AB ganz knapp nicht mehr voneinander getrennt |
|
Mark McCarthy
Fremont (California/USA) |
317mm (170x) |
Porrima. Very pretty yellow-white, near equal, close split at 170x. Star disks improved with apodizing mask. |
|
|
|
|
STF1687, 35 Com |
|
AB |
5m2 |
7m1 |
1.3'' |
198° |
2019 |
Com |
12h53m17.77s |
+21°14'42.10" |
|
|
|
|
AC |
5m2 |
9m8 |
28.5'' |
127° |
2016 |
|
|
|
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
AC: Rich light yellow and much fainter wide blue B. Near M64. [Need to re-observe. I saw the wide AC, but not the AB which is 5.15/7.08 1.2" |
|
Mark McCarthy
Fremont (California/USA) |
317mm (205x) |
AC: Rich light yellow and much fainter wide blue B. Near M64. (Need to re-observe. I saw the wide AC, but not the AB which is 5.15/7.08 1.2") |
|
Mark McCarthy
Fremont (California/USA) |
317mm (443x) |
AC: Orange and blue, 3 delta mag, very wide separation to the east. Did not notice AB |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
AB: 35 Com: Bright orange & fainter B, showpiece, ~1.5" |
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
AB: 35 Com. Can see the 7th magnitude B at 333x, but it's easier to resolve with 533x. Part of plus one. Bright orange A and deeper orange B |
|
|
|
|
STT256 |
|
|
7m3 |
7m6 |
1.1'' |
101° |
2017 |
Vir |
12h56m26.59s |
-00°57'16.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Wide separation equal brightness white stars |
|
|
|
|
78 UMa, BU1082 |
|
|
5m0 |
7m9 |
0.7'' |
141° |
2019 |
UMa |
13h00m43.59s |
+56°21'58.80" |
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (260x) |
nicht getrennt |
|
|
|
|
STT261 |
|
|
7m4 |
7m6 |
2.6'' |
338° |
2018 |
CVn |
13h12m02.02s |
+32°05'07.90" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (57x) |
2020-04-20: At 44x immediately visible as figure '8', even separable on closer look. The components appeared similarly bright. Overall rather dim. At 57x clearly split, but still very close together with a small difference in brightness. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
Light yellow-white equal pair, ~1.5" |
|
|
|
|
RST3829 & SHJ162 |
RST3829 |
Aa-Ab |
7m3 |
9m1 |
0.5'' |
166° |
2018 |
Vir |
13h14m55.72s |
-11°22'09.90" |
|
|
|
SHJ162 |
AB |
7m1 |
8m2 |
113.2'' |
45° |
2017 |
|
|
|
|
|
|
SHJ162 |
BC |
8m2 |
13m3 |
66.2'' |
136° |
2015 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
SHJ162 (AB): bei 32x weit auseinander stehend - ein eigentümlicher Farbkontrast, A strahlt weiß, B kupfern |
|
Mark McCarthy
Fremont (California/USA) |
317mm (340x) |
SHJ162 (AB): a widely separated yellow A and orange B, 1 magnitude difference. |
|
|
|
★
|
BU800 |
|
AB |
6m7 |
9m5 |
7.6'' |
104° |
2018 |
Com |
13h16m51.05s |
+17°01'01.90" |
|
|
Christopher Hay
Seeheim (Germany) |
125mm (36x) |
AB, March 2019: Clearly split in good moments, but secondary popping in and out of view in instable seeing.
A physical double only 36 light years distant to us. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Lovely yellow and orange, very pretty, wide separation, 2.5 delta mag. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Nice pair, A is a light but rich yellow, B is blue-white. Wide, ~2 delta mag |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Not difficult, orange-yellow A with bluish B, 3 delta mag. pretty wide to east. |
|
|
|
★★
|
HU644 |
|
AB |
9m1 |
9m9 |
0.1'' |
354° |
2019 |
CVn |
13h19m45.58s |
+47°46'41.10" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (443x) |
Orange-red pair, near equal mag, split with seeing at 443x |
|
|
|
|
STF1734 |
|
|
6m8 |
7m3 |
1.1'' |
173° |
2017 |
Vir |
13h20m41.57s |
+02°56'31.90" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (104x) |
Double star appeared slightly elongated without noticeable notching. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Blue-white A, light orange B, half delta mag, close ~1.5". Nice! |
|
|
|
|
HO260 |
|
|
9m6 |
9m9 |
1.7'' |
89° |
2017 |
CVn |
13h23m32.82s |
+29°14'15.00" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
Close pair, nicely split ~2", ~1 delta mag, light orange stars |
|
|
|
|
STT266 |
|
|
8m0 |
8m4 |
2.0'' |
358° |
2018 |
Com |
13h28m26.68s |
+15°42'30.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
~0.5 delta mag, ~2 separation, nice looking pair |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Close 2" near equal white. Period of 1954.11 years. Near its closest separation now (May 2017), will be ~4" by the year 2822. |
|
|
|
|
STF1752 |
|
AB |
8m2 |
9m9 |
1.0'' |
107° |
2017 |
UMa |
13h28m49.82s |
+59°55'41.70" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Orange star perhaps a little elongated, tough. |
|
|
|
|
VYS6, VW Com |
|
|
11m4 |
11m3 |
2.6'' |
55° |
2018 |
Com |
13h32m44.59s |
+16°48'39.00" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
VW Com. Seen best with averted vision and when seeing stills. Close but pretty well split, ~2-3". Extremely faint reddish pair, PA NE. |
|
|
|
|
STF1757 |
|
AB |
7m8 |
8m8 |
1.7'' |
143° |
2018 |
Vir |
13h34m16.38s |
-00°18'49.80" |
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (200x) |
schwierig |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
Close, ~2", a dull orange, ~1.5 delta mag. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Orange-yellow, half a delta mag, pretty, ~1.5" |
|
|
|
|
BU932 |
|
AB |
6m3 |
7m3 |
0.4'' |
67° |
2019 |
Vir |
13h34m40.48s |
-13°12'51.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (170x) |
Out of round with apodizing mask |
|
|
|
★
|
25 CVn |
STF1768 |
AB |
5m0 |
7m0 |
1.6'' |
93° |
2019 |
CVn |
13h37m27.70s |
+36°17'41.40" |
|
|
|
STF1768 |
AC |
5m0 |
11m6 |
214.3'' |
321° |
2015 |
|
|
|
|
|
|
KZA73 |
AD |
5m0 |
13m0 |
335.6'' |
92° |
2015 |
|
|
|
|
|
|
KZA73 |
AE |
5m0 |
12m7 |
369.5'' |
139° |
2015 |
|
|
|
|
|
|
KZA73 |
AF |
5m0 |
9m4 |
437.3'' |
118° |
2015 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
60mm (160x) |
AB: 2020-03-16: 102/1122mm ED refractor stopped down to 60mm. The diffraction ring of the primary component is virtually invisible. The companion appears only in few moments as an extremely faint, elongated brightening in the diffraction ring. Very difficult. Telescope should be in very good optical condition! |
|
Robert Zebahl
Leipzig (Germany) |
70mm (160x) |
AB: 2020-03-16: 102/1122mm ED refractor stopped down to 70mm. Companion only visible as a subtle, elongated, not permanently visible brightening. The diffraction ring of the primary component is only visible occasionally. Difficult. Telescope should be in good optical condition! |
|
Robert Zebahl
Leipzig (Germany) |
80mm (160x) |
AB: 2020-03-16: 102/1122mm ED refractor stopped down to 80mm. Companion permanently visible as elongated brightening in the diffraction ring. But the diffraction ring itself appears rather faint. Moderately difficult. |
|
Robert Zebahl
Leipzig (Germany) |
90mm (160x) |
AB: 2020-03-16: 102/1122mm ED refractor stopped down to 90mm. Companion quite clearly recognizable as elongated brightening in diffraction ring. Relatively simple. |
|
Robert Zebahl
Leipzig (Germany) |
102mm (160x) |
AB: 2020-03-16: The faint companion is immediately recognizable as a distinct, slightly elongated brightening in the diffraction ring. Easy. |
|
Robert Zebahl
Leipzig (Germany) |
152mm (150x) |
AB: 2020-03-19: At 150x the clearly fainter companion is visible as a roundish brightening. Due to the chromatic aberration of the achromat (152mm f/5.9) the companion is almost outshined. At 180x the companion is then well, at 225x and 300x very well visible as a tiny separated star. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
AB: Very tight pair, a little more than hairline split, ~2 delta mag. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
AB: Very tight pair, a little more than hairline split, ~2 delta mag. 8" 333x: white and dull blue, ~1", Nice! |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
AB: schwierig wegen Helligkeitsunterschied |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
AB: Very pretty pale yellow and orange, 2-3 delta mag, ~2" |
|
|
|
|
STF1769 |
|
AB |
7m9 |
10m4 |
1.6'' |
45° |
2015 |
CVn |
13h38m01.95s |
+39°10'41.00" |
|
|
|
|
AC |
7m9 |
9m3 |
56.2'' |
259° |
2015 |
|
|
|
|
|
|
|
AD |
7m9 |
13m0 |
151.6'' |
188° |
2002 |
|
|
|
|
|
|
|
CD |
9m3 |
13m0 |
142.9'' |
167° |
2002 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
AC: bei 32x ein weit auseinander stehendes Pärchen - B im Westen ist eine Größenklasse schwächer als die weiße Komponente A und wirkt gegen A richtiggehend blaugrau |
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
AC: Wide separated blue stars, half delta mag. 2+1 system? 1 delta mag fainter star quite more widely separated. (Sextuple system. I missed the 1.6" AB, need to re-observe. Saw the AC pair only -- the fainter star noticed may be part of the system.) |
|
|
|
|
STF1781, HT Vir |
|
AB |
7m9 |
8m1 |
1.0'' |
198° |
2019 |
Vir |
13h46m06.75s |
+05°06'56.10" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
White A and slightly yellow B, ~2", half delta mag |
|
|
|
|
STF1785 |
|
|
7m4 |
8m2 |
2.8'' |
190° |
2019 |
Boo |
13h49m04.00s |
+26°58'47.70" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Slightly orange-tinged white stars, near equal, well separated |
|
Karsten Kopp
Köln (Germany) |
600mm (180x) |
Im CLT bei 180 x Vergrößerung gut zu trennen. Leichter Helligkeitsunterschied und beider Sterne erscheinen gelborange. |
|
|
|
|
STF1789 |
|
|
8m6 |
9m0 |
6.7'' |
328° |
2015 |
CVn |
13h54m05.19s |
+32°49'35.20" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (31x) |
2020-04-20: At 22x clearly visible as figure '8' and almost separated. At 31x fine separation of the still close pair. A slight difference in brightness and color is visible: white-yellowish, yellowish-orange. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
Pretty equal magnitude white, well separated. |
|
|
Berthold Fuchs
Wiesbaden (Germany) |
130mm |
difficult DS |
|
|
|
★
|
STF1788 |
|
AB |
6m7 |
7m3 |
3.7'' |
101° |
2019 |
Vir |
13h54m58.20s |
-08°03'31.90" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (47x) |
Very nice view! Pretty tight together with a moderate difference in brightness. |
|
René Merting
Drachhausen (Germany) |
100mm (64x) |
bei 107x zeigt sich ein schönes, knapp getrenntes Pärchen - B im Osten ist nur knapp schwächer als A - Komponente A ist weiß, B ist grau, wirkt aber auch leicht gelb gefärbt - zurück auf 64x kann ich die beiden Sterne auch schon knapp getrennt erkennen |
|
Mark McCarthy
Fremont (California/USA) |
317mm (340x) |
bright pair of near equal magnitude, both yellow-while color. |
|
|
|
|
A1097 & STF1800 |
A1097 |
AB |
9m1 |
8m2 |
0.4'' |
259° |
2016 |
UMa |
14h02m00.60s |
+57°13'28.60" |
|
|
|
STF1800 |
AB-C |
7m8 |
10m4 |
28.4'' |
20° |
2015 |
|
|
|
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
A1097 (AB): Hair-split at best moments, half delta mag, <0.8". A fainter star likely in the system about 30" distant -- this is STF 1800 AB-C. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
STF1800 (AB-C): Faint star ~30" from A1097 |
|
|
|
|
STT277 & STF1812 |
STT277 |
AB |
8m7 |
8m6 |
0.2'' |
64° |
2009 |
Boo |
14h12m26.68s |
+28°43'02.30" |
|
|
|
STF1812 |
AB-C |
7m9 |
9m4 |
14.1'' |
108° |
2015 |
|
|
|
|
|
|
STF1812 |
AB-D |
7m9 |
12m1 |
72.6'' |
153° |
2015 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
18x70 |
STF1812 (AB-C): mit etwas Geduld zeigt sich C sehr schwach und knapp abgesetzt östlich von AB - nur mit hoher Konzentration, aber machbar |
|
René Merting
Drachhausen (Germany) |
100mm (20x) |
STF1812 (AB-C): bei 20x ist die C-Komponente östlich knapp getrennt von AB gerade so erkennbar - bei 32x dann schön getrenntes Pärchen, C-Komponente deutlich schwächer, vielleicht 2 mag weniger |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
STF1812 (AB-C): A 2+1 system with AB-D. Main pair 2.5 delta mag, pretty wide. The third, fainter pair about 4x the other separation. |
|
|
|
|
STF1820 |
|
|
9m1 |
9m4 |
2.8'' |
123° |
2019 |
UMa |
14h13m00.76s |
+55°19'31.10" |
|
|
René Merting
Drachhausen (Germany) |
320mm (144x) |
bei 72x ist ein Stäbchen mit einer angedeuteten Einschnürung erkennen - bei 144x sind beide Komponenten getrennt voneinander sichtbar - beide sind gleich hell |
|
|
|
★
|
BU224 |
|
|
8m9 |
9m3 |
0.6'' |
101° |
2016 |
Boo |
14h13m26.94s |
+12°34'26.20" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Hairline split with seeing, light yellow-white stars, noticeable mag difference. Snowman when seeing is not stable |
|
|
|
★★
|
STF1821, kappa Boo, 17 Boo, Asellus Tertius |
|
AB |
4m5 |
6m6 |
13.8'' |
235° |
2019 |
Boo |
14h13m29.00s |
+51°47'23.80" |
|
|
Christopher Hay
Seeheim (Germany) |
15x60 |
On tripod. Fine split. Attractive together with well-split Iota Boo in 3.3° FOV.
Iota, Kappa, Theta were called Aselli by Johannes Bayer in the 17th century, meaning The Donkeys. The group is found easily naked-eye under a 5mag sky. Kappa Boo is Asellus Tertius, The Third Donkey.
A physical double at a distance to us of 163 light years. |
|
René Merting
Drachhausen (Germany) |
18x70 |
Komponente A strahlt so hell, dass B deutlich schwächer ganz knapp im SW von A abgesetzt sichtbar ist - Helligkeitsunterschied schätzungsweise 3 Magnituden (nur 2.09 mag laut Stelle Doppie) |
|
Robert Zebahl
Leipzig (Germany) |
70mm (22x) |
2020-04-24: Clearly separated with significant difference in brightness. The primary component showed a pale yellowish-orange color with a greyish companion. To the southeast there is the double star STFA 26. |
|
Sarah Gebauer
Germany |
100mm (73x) |
sehr schön zusammen mit STFA 26 in einem Gesichtsfeld bei 73x, dabei sehr schön getrennt |
|
Uwe Pilz
Leipzig (Germany) |
105mm (144x) |
weiß-grau, trennbar bei 22x |
|
Karsten Kopp
Köln (Germany) |
600mm (180x) |
Im CLT leicht zu trennen. Beider Sterne erscheinen weißlich. |
|
|
|
★
|
STF1816 |
|
|
7m4 |
7m8 |
0.4'' |
100° |
2019 |
Boo |
14h13m54.63s |
+29°06'19.50" |
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (88x) |
gelb |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Rod-shaped equal white. July 2017 |
|
|
|
★★
|
A1101 |
|
AB |
9m7 |
10m3 |
0.3'' |
224° |
2018 |
Boo |
14h15m50.57s |
+10°17'59.30" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
I stared for a long time and had brief instants of an elongation or bump, and even a tentative split of a star. Sketched the orientation will check the PA later [I think I have it. My orientation on the sketch is in the correct position as in relation to the AB-C & AB-D pairs.] |
|
|
|
★
|
STF1825 |
|
|
6m5 |
8m4 |
4.2'' |
154° |
2019 |
Boo |
14h16m32.84s |
+20°07'18.70" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Cream white A and light blue B, wide ~5", ~2 delta mag |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
White and orange, 3 delta mag, well split. |
|
|
|
|
STF1834 |
|
|
8m1 |
8m3 |
1.6'' |
104° |
2018 |
Boo |
14h20m17.60s |
+48°30'25.10" |
|
|
Robert Zebahl
Leipzig (Germany) |
120mm (150x) |
At 108x elongated, at 150x barely split with similarly bright components. |
|
|
|
★★
|
STF1835 & BU1111 |
STF1835 |
A-BC |
5m0 |
6m8 |
6.2'' |
196° |
2018 |
Boo |
14h23m22.74s |
+08°26'47.90" |
|
|
|
BU1111 |
BC |
7m4 |
7m7 |
0.3'' |
16° |
2018 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
100mm (64x) |
STF1835 (A-BC): bei 32x erscheint der Stern leicht unrund, verschmiert - bei 107x präsentiert sich BC gut getrennt im Süden von A - Helligkeitsunterschied eine Größenklasse (1.75 mag laut Stelle Doppie) - bei 64x sind beide Sterne auch getrennt erkennbar, BC strahlt warmweiß |
|
Robert Zebahl
Leipzig (Germany) |
102mm (62x) |
STF1835 (A-BC): At 28x barely split with visible difference in brightness. At 62x easy to separate. The colors seemed similar. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
STF1835 (A-BC): In a line of three stars, white and slightly red B. Wide, ~6", 2 delta mag. Did not detect BC 0.3" |
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
BU1111 (BC): Short period pair, it is a component of STF 1835. I get a nothed near equal elongation with a clear direction in relation to the A star. Very cool |
|
Karsten Kopp
Köln (Germany) |
600mm (180x) |
STF1835 (A-BC): Doppelstern konnte im CLT gut getrennt werden. Helligkeitsunterschied ist merklich, aber nicht extrem. Der hellere erscheint eher weißlich und der kleinere eher bläulich. Der Farbunterschied ist aber minimal. |
|
|
Berthold Fuchs
Wiesbaden (Germany) |
130mm |
STF1835 (A-BC): close DS |
|
|
|
|
HU1268 |
|
|
9m8 |
9m9 |
0.4'' |
338° |
2019 |
Boo |
14h29m32.75s |
+36°12'26.00" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (533x) |
Notched elongation, white, near equal |
|
|
|
|
STF1858 |
|
AB |
8m1 |
9m0 |
3.0'' |
38° |
2019 |
Boo |
14h33m36.45s |
+35°35'08.00" |
|
|
|
|
AC |
8m1 |
14m3 |
19.7'' |
335° |
2013 |
|
|
|
|
|
|
|
AD |
8m1 |
14m7 |
36.6'' |
322° |
2013 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
100mm (142x) |
AB: bei 64x ein extrem dicht stehendes Pärchen, Trennung fast greifbar - bei 142x stehen die Sterne noch immer sehr eng, die Trennung ist nun aber eindeutig - Komponente B im NO ist etwas schwächer - beide Sterne leicht gelblich, hin und wieder mit Farbkontrast in Richtung orange |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
AB: nicht getrennt |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
AB: Nice white pair, ~1.5 delta mag, wide ~5". (Check the orbit on this one! Oh to be alive in the 3530s to see B whip around A) |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
AC: 13th magnitude, a wide pair? Seen with averted vision, comes and goes with seeing |
|
|
|
★
|
STF1863 |
|
|
7m7 |
7m8 |
0.6'' |
63° |
2018 |
Boo |
14h38m00.71s |
+51°34'42.10" |
|
|
Robert Zebahl
Leipzig (Germany) |
102mm (280x) |
2021-05-16: The double star appeared elongated with an estimated position angle of 60°. |
|
Christopher Hay
Seeheim (Germany) |
180mm (200x) |
30 May 2021, current separation 0.65” according to Stelledoppie. No prior PA knowledge nor knowledge of relative brightnesses.
Constant elongation seen. Definite determination of position of the primary within the elongation, more definite than the relative brightnesses (consulted after observation) would have led me to expect. PA estimated at 60°.
In good moments fragments of a pear-shaped first diffraction ring surround the system, particularly on the side of the primary. An interesting and attractive sight. |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
gerade trennbar |
|
|
|
|
STF1867 |
|
|
8m4 |
8m8 |
0.7'' |
355° |
2017 |
Boo |
14h40m44.21s |
+31°17'23.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (533x) |
Hairline split best moments, noticeable mag difference |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
0.5 delta mag, hair to figure 8 split, white. |
|
|
|
|
STF1872 |
|
AB |
7m5 |
8m3 |
7.4'' |
50° |
2019 |
Dra |
14h41m00.84s |
+57°57'28.10" |
|
|
|
|
AC |
7m5 |
10m6 |
75.7'' |
42° |
2015 |
|
|
|
René Merting
Drachhausen (Germany) |
320mm (45x) |
AB: bei 45x ist die B-Komponente nordöstlich über A erkennbar, ein Blatt Papier passt zwischen die beiden - leichter Farbunterschied - bei 72x zeigt sich ein gut getrenntes Pärchen, B ist eine dreiviertel Magnitude schwächer und blauweiß, A ist gelbweiß |
|
Karsten Kopp
Köln (Germany) |
600mm (180x) |
AB: Doppelstern ist gut zu trennen. Helligkeitsunterschied ist erkennbar, aber nicht besonders auffällig. Der hellere Stern erscheint weißgelblich und der schwächere gelblich. |
|
|
|
★★
|
zeta Boo |
STF1865 |
AB |
4m5 |
4m5 |
0.3'' |
282° |
2019 |
Boo |
14h41m08.92s |
+13°43'42.00" |
|
|
|
H6 104 |
AB-C |
4m5 |
11m0 |
104.3'' |
260° |
2015 |
|
|
|
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (88x) |
AB-C |
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
AB: Zeta Boo. Short period. First impression was moderately well notched overlapping disks (eg. not barely notched, but not strongly notched either). With more time observing & getting used to the image, and in moments of better seeing, the notch became more distinct. It would not separate in spite of moments of better seeing. I could also see the elongation, but only subtly notched due to the smaller scale, at 667x |
|
|
|
|
STF1871 |
|
|
8m0 |
8m1 |
1.8'' |
313° |
2019 |
Boo |
14h41m35.50s |
+51°23'51.30" |
|
|
Robert Zebahl
Leipzig (Germany) |
102mm (187x) |
2021-05-16: Clearly separated, but still pretty tight with similarly bright components. |
|
|
|
|
STF1878, DL Dra |
|
|
6m3 |
9m2 |
4.2'' |
314° |
2015 |
Dra |
14h42m03.25s |
+61°15'42.90" |
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (198x) |
starke Aufhellung im ersten Ring |
|
|
|
★★
|
HU575 |
|
AB |
9m8 |
10m1 |
0.5'' |
152° |
2011 |
Boo |
14h42m33.63s |
+19°28'46.90" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
Short period. Small, faint, but definite split of these orange-red near equal stars. I sketched a clear orientation to field stars. Awesome |
|
|
|
★
|
A1109 |
|
AB |
7m4 |
9m4 |
1.9'' |
88° |
2017 |
Vir |
14h42m47.60s |
+06°35'26.40" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Both stars light yellow, big magnitude difference, ~3-4 delta mag, about 2". Not difficult |
|
|
|
|
STF1879 |
|
AB |
7m8 |
8m4 |
1.7'' |
82° |
2018 |
Boo |
14h46m15.58s |
+09°38'48.20" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Fairly close yellow and orange-yellow, ~1 delta mag, ~3" |
|
Karsten Kopp
Köln (Germany) |
600mm (180x) |
Doppelstern konnte gerade so getrennt werden. Beide erscheinen weißlich. |
|
|
|
★
|
STF1884 |
|
|
6m6 |
7m5 |
2.1'' |
58° |
2019 |
Boo |
14h48m23.37s |
+24°22'01.00" |
|
|
René Merting
Drachhausen (Germany) |
100mm (64x) |
bei 64x ist der Doppelstern als 8 erkennbar, 107x reicht dann für die knappe Trennung - die B-Komponente im NO ist nur unwesentlich schwächer - ein sehenswertes Pärchen |
|
Robert Zebahl
Leipzig (Germany) |
102mm (86x) |
At 86x pretty tight and unequal. At 160x clearly split. A: white, B: slightly orange. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Prototypical pair, >1 delta mag, ~3" separation, white to off white color |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
einfach |
|
Karsten Kopp
Köln (Germany) |
600mm (180x) |
Doppelstern konnte gerade so getrennt werden. Beide Sternen leuchten weißlich. |
|
|
|
|
BU346 |
|
|
7m5 |
7m9 |
2.8'' |
277° |
2019 |
Lib |
14h48m31.71s |
-17°20'24.40" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Easy, well split, yellow-orange stars, half delta mag. |
|
|
|
|
STF1883 |
|
|
7m0 |
8m9 |
1.0'' |
278° |
2015 |
Vir |
14h48m53.22s |
+05°57'15.90" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Strongly suspect a split / elongation in 80mm finder. In the scope it is a tight 2 delta mag orangish-white pair, ~1" |
|
|
|
|
BU106, mu Lib, 7 Lib |
|
AB |
5m6 |
6m6 |
1.9'' |
7° |
2019 |
Lib |
14h49m19.09s |
-14°08'56.30" |
|
|
|
|
AC |
5m6 |
14m7 |
12.9'' |
294° |
2000 |
|
|
|
|
|
|
|
AD |
5m6 |
14m1 |
25.7'' |
168° |
2000 |
|
|
|
|
|
|
|
AE |
5m6 |
12m6 |
26.6'' |
232° |
2015 |
|
|
|
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
AB: Close, 1.5-2", half to one delta mag, off-white stars. |
|
Gerd Kohler
Langenzenn (Germany) |
254mm (346x) |
AB: Bläulich-weiß - bläulich-weiß. A und B haben nur einen geringen Helligkeitsunterschied. |
|
Gerd Kohler
Langenzenn (Germany) |
254mm (346x) |
AE: Bläulich-weiß - weiß. Stern E ist sehr schwach. |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
AB: getrennt, schwierig wegen Südlage |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
AB: Mu Lib: Easy, white & off white, 1 delta mag, ~3" |
|
|
|
★
|
STF1890, 39 Boo |
|
|
6m3 |
6m7 |
2.5'' |
46° |
2019 |
Boo |
14h49m41.37s |
+48°43'15.60" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (67x) |
2020-04-01: At 44x elongated, partly notched. At 67x split, but very tight. A difference in brightness was not seen. At 133x clearly separated with little difference in brightness. A appeared pale yellow, B rather warm-white. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (100x) |
2020-04-18: At 57x very finely separated with extremely tightly spaced components that appeared equally bright. At 100x a very nice pair with little difference in brightness. Fantastic sight! The color of the components was slightly different: creamy-white & a touch of yellow-orange. |
|
Robert Zebahl
Leipzig (Germany) |
102mm (187x) |
2021-05-16: Easy. Beautiful double star with slight difference in brightness. Yellowish & rather white. I estimated the position angle to 40°. |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
gleich hell |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Bright white pair, well split |
|
|
|
★
|
xi Boo, 37 Boo |
STF1888 |
AB |
4m8 |
7m0 |
5.2'' |
298° |
2019 |
Boo |
14h51m23.38s |
+19°06'01.70" |
|
|
|
STF1888 |
AC |
4m8 |
13m8 |
71.3'' |
340° |
2015 |
|
|
|
|
|
|
STF1888 |
AD |
4m8 |
11m7 |
160.8'' |
286° |
2015 |
|
|
|
|
|
|
ARN11 |
AE |
4m8 |
8m7 |
271.5'' |
98° |
2015 |
|
|
|
|
|
|
ARN11 |
AF |
4m8 |
9m2 |
337.5'' |
37° |
2015 |
|
|
|
|
|
|
STF1888 |
BC |
7m0 |
13m8 |
63.9'' |
340° |
2001 |
|
|
|
|
|
|
STF1888 |
BE |
7m0 |
8m7 |
273.5'' |
102° |
2009 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (44x) |
AB: 2020-04-24: Beautifully separated with quite a large difference in brightness in a lovely star field. The primary component shines yellowish with a faint companion. |
|
Sarah Gebauer
Germany |
150mm (83x) |
AB: die 6'' entfernten Komponenten A und B konnten mühelos bei 83x getrennt werden, Komponente E war zu sehen, C, D und F waren nicht sichtbar |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
AB: Xi Boo. Short period. Richly colored yellow and orange stars, ~1 delta mag, ~5" separation, with several other stars in view. Very pretty |
|
Karsten Kopp
Köln (Germany) |
600mm (180x) |
AB: Ein recht schöner Doppelstern, wobei neben dem Helligkeitsunterschied von 2,2 mag auch die Sternfarben ein schönes Gesamtbild geben. Der hellere Stern erstrahlt gelblich weiß und der schwächere orangegelb.
Hier handelt es sich auch um ein recht nahes System mit 21,9 Lichtjahren Entfernung. |
|
|
|
★
|
STT287 |
|
|
8m4 |
8m6 |
0.6'' |
5° |
2019 |
Boo |
14h51m27.53s |
+44°55'42.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Wow! Hair-split, ~0.7", near equal to half a delta mag. |
|
|
|
★
|
BU31 |
|
AB |
8m5 |
10m3 |
2.0'' |
222° |
2017 |
Boo |
14h52m30.05s |
+18°44'19.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
White A and light yellow B, finely split, ~2 delta mag |
|
Karsten Kopp
Köln (Germany) |
600mm (180x) |
Doppelstern konnte gerade so getrennt werden. Die Distanz von 2,0 Bogensekunden und die Helligkeit beider Sterne, macht die Sichtung nicht leicht. |
|
|
|
|
STT288 |
|
|
6m9 |
7m5 |
1.1'' |
160° |
2019 |
Boo |
14h53m23.35s |
+15°42'18.30" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Consistent split, better with seeing, ~1 delta mag, ~1" separation, blue-white stars |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
rel. einfach |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Notched / figure 8 with 277x, split with 553x. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Needed 553x to separate, resolved with the seeing. Near equal yellow-white, ~1" or less. |
|
|
|
★
|
STF1909, 44 Boo |
|
|
5m2 |
6m1 |
0.3'' |
95° |
2019 |
Boo |
15h03m47.30s |
+47°39'14.60" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
2015 getrennt zu sehen (1") |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
I Boo. Figure 8 to hair split, ~0.9". This pair shrinking separation fast, will be <0.5" in a couple of years. Only 40 LY away. (July 2017) |
|
|
|
★
|
BU119 |
|
AB |
8m1 |
8m8 |
2.3'' |
274° |
2019 |
Lib |
15h05m31.91s |
-07°00'48.80" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Tried 667x at first but it was too much power, too dim and seeing too choppy. 333x was perfect, clean and well split ~2" near equal, slightly orange |
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
8" 667x Too much power, too dim and seeing too choppy. 8" 333x perfect, clean and well split ~2" near equal, slightly orange. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Very like BU 346. well split near half delta mag yellow stars, 2.5" |
|
|
|
★★
|
STFA27, delta Boo, 49 Boo |
|
AB |
3m6 |
7m9 |
105.0'' |
78° |
2017 |
Boo |
15h15m30.16s |
+33°18'53.40" |
Christopher Hay
Seeheim (Germany) |
15x45 |
Handheld, binoculars with internal stabilisation. Very wide. Component A is of a slight yellow-orange hue, its companion too weak (NELM in target area: 5m0) for colour impression.
Nice in 4.5° FOV with Mu Boo AB, which is visibly slightly wider than Delta Boo and whose component B is slightly brighter than that of Delta Boo.
Delta Boo is a physical double at a distance to us of 122 light years. |
|
René Merting
Drachhausen (Germany) |
18x70 |
ein sehr ungleiches, weit auseinander stehendes Sternpaar - Komponente A im Westen strahlt gleißend cremegelb, die wesentlich schwächere Komponente B im Osten ist weißgrau bis bräunlich |
|
Robert Zebahl
Leipzig (Germany) |
70mm (22x) |
2020-04-24: Widely separated pair with large difference in brightness. Less striking. The bright primary component shines in a bright yellow. |
|
Mark McCarthy
Fremont (California/USA) |
80mm (13x) |
Split in 80mm finder. Very wide pair, very bright A, 3 delta mag B. Orange-yellow and blue-white B |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
Bright star with many nearby faint stars. Didn't bother trying to figure out which are which. |
|
|
|
|
STF1932 |
|
AB |
7m3 |
7m4 |
1.6'' |
267° |
2019 |
CrB |
15h18m20.19s |
+26°50'24.70" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
gleich hell, getrennt |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Near equal yellow-white, very close but clean split, ~1.5". Nice! |
|
|
|
★★★
|
mu Boo, 51 Boo, Alkalurops |
CHR181, mu 1 Boo |
Aa-Ab |
4m3 |
|
0.1'' |
188° |
2012 |
Boo |
15h24m29.54s |
+37°22'37.10" |
|
|
|
STFA28, mu 1 Boo |
AB |
4m3 |
7m1 |
109.0'' |
172° |
2018 |
|
|
|
|
|
|
STF1938, mu 2 Boo |
Ba-Bb |
7m1 |
7m6 |
2.3'' |
3° |
2019 |
|
|
|
|
|
Christopher Hay
Seeheim (Germany) |
7x45 |
STFA28 (AB): Handheld. Wide split. A compact uneven pair. Component A is bluish-white.
Rather charming in 8.6° FOV with Nu1/2 Boo, which has a gorgeous colour contrast, golden-orange and ice-blue, making it one of the strongest colour-contrast pairs in the sky for binoculars and greatly accentuating the sight of Mu Boo.
In 15x45 binoculars STFA28 AB is very wide, component A bluish-white, B warmer. |
|
Robert Zebahl
Leipzig (Germany) |
8x40 |
STFA28 (AB): Easily split with obvious difference in brightness. |
|
Robert Zebahl
Leipzig (Germany) |
16x70 |
STFA28 (AB): 2021-06-14: Wide, relatively striking pair. Pale yellow & dark orange. |
|
René Merting
Drachhausen (Germany) |
16x70 |
STFA28 (AB): weit getrenntes Pärchen, aufgrund der großen Helligkeitsunterschiedes schöner Farbkontrast - Komponente A im Norden gelblich, B im Süden mehr grau-braun |
|
Robert Zebahl
Leipzig (Germany) |
70mm (22x) |
STFA28 (AB): Evident, very wide apart and unequal. A: white-yellowish, B: grey. |
|
Robert Zebahl
Leipzig (Germany) |
102mm (125x) |
Beautiful view! This triple system includes STFA 28 and STF 1938. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
ein heller 4m und zwei nahe dunkle 7m, lohnend. |
|
Robert Zebahl
Leipzig (Germany) |
120mm (23x) |
STFA28 (AB): Easy to split with large angular distance and noticeable difference in brightness. |
|
Sarah Gebauer
Germany |
150mm (125x) |
A-BC mit 109'' sind bei 125x sehr weit getrennt, es ist der Ansatz eines engen Doppelsterns zu erkennen, der sich mit 2,2'' Abstand auch bis 250x nicht auftrennen ließ |
|
Christopher Hay
Seeheim (Germany) |
180mm (105x) |
STF1938 (Ba-Bb): At 105x in poor seeing a kissing, evenly matched pair. At 180x clearly split despite the poor seeing, southern component (Ba) seems slightly brighter than Bb. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
STFA28 (AB): Bright A star does not seem round. The B star is a tight equal pair, pretty set. [Aa,Ab is CHR 181 0.1", and I'd be shocked if I actually detected it. STFA 28 is technically the bright star and the tight pair, the tight pair is Ba,Bb = STF 1938, 7.09/7.63, 2.2"] |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
STFA28 (AB): Bright A star does not seem round (CHR181). B star is a tight equal pair (STF1938 Ba-Bb). Pretty set. STFA 28 is technically the bright star and the tight pair |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
CHR181 (Aa-Ab): Bright A star does not seem round (CHR181). B star is a tight equal pair (STF1938 Ba-Bb). Pretty set. STFA 28 is technically the bright star and the tight pair |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
STF1938 (Ba-Bb): Bright A star does not seem round (CHR181). B star is a tight equal pair (STF1938 Ba-Bb). Pretty set. STFA 28 is technically the bright star and the tight pair |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
STF1938 (Ba-Bb): 3er System, schön |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
STFA28 (AB): Bright white star with tight yellow pair STF 1938 as its companion. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
STFA28 (AB): Striking. Bright star with near equal double STF 1938 paired with it. A star is a spectroscopic binary |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
STF1938 (Ba-Bb): Near equal close but well split double also paired with STFA28 |
|
Karsten Kopp
Köln (Germany) |
600mm (257x) |
Hier handelt es sich um ein Dreifachsternsystem, welches jetzt aber nicht durch eine besondere Färbung der Sterne auffällt. Die A - B/C Komponenten stehen noch sehr weit auseinander, wobei auch die A-Komponente um einiges heller erscheint. Die beiden Komponenten B/C sind wesentlich näher beieinander und unterscheiden sich auch kaum in ihrer Helligkeit. |
|
|
|
|
HU149 |
|
|
7m5 |
7m6 |
0.7'' |
272° |
2017 |
Dra |
15h24m35.30s |
+54°12'46.10" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
mit Zwischenraum zu sehen |
|
|
|
★★
|
STT296 |
|
AB |
7m8 |
9m1 |
2.1'' |
274° |
2019 |
Boo |
15h26m26.56s |
+44°00'13.20" |
|
|
|
|
AC |
7m8 |
12m7 |
80.7'' |
313° |
2016 |
|
|
|
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
AB: Very fine but well split, ~2", yellow-white A, reddish B, 2 delta mag. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
AB: Very fine but well split, ~2", yellow-white A, reddish B, 2 delta mag. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
AB: ! Beautiful white A and dusky yellow B, well split ~2", ~2 delta. Very pretty star |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
AB: Very beautiful, 2", 2 delta mag, with very faint third (AC) seen with averted vision widely separated. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
AC: Very beautiful, 2", 2 delta mag, with very faint third (AC) seen with averted vision widely separated. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
AB: Close near equal, 1 delta mag, white. |
|
|
|
|
STF1954, delta Ser, 13 Ser |
|
AB |
4m2 |
5m2 |
4.0'' |
171° |
2019 |
Ser |
15h34m48.14s |
+10°32'20.00" |
|
|
|
|
AC |
4m2 |
13m9 |
66.6'' |
18° |
2014 |
|
|
|
|
|
|
|
CD |
13m9 |
14m6 |
4.0'' |
341° |
2018 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (57x) |
AB: Easy to separate with relatively close components and a clear difference in brightness. A appeared rather white, B slightly orange. |
|
René Merting
Drachhausen (Germany) |
100mm (107x) |
AB: bei 142x zwei gut getrennte reinweiße Komponenten - B wirkt eine halbe Größenklasse schwächer - zurück auf 107x ist die Trennung ebenfalls einfach - zurück auf 64x ist es eine 8 mit tiefen Einschnürungen, kurz vor der Trennung |
|
Stefan Loibl
Rosenheim (Germany) |
102mm (102x) |
AB: sparse field |
|
Sarah Gebauer
Germany |
150mm (85x) |
AB: Mit 85x schon schön getrennt, ein leichter Größenunterschied der Sterne zu erkennen, einige schwache Feldsterne im Okular bei 0,95° Gf. |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
AB: getrennt, Del Ser |
|
|
|
★
|
STT298 |
|
AB |
7m2 |
8m4 |
1.3'' |
187° |
2017 |
Boo |
15h36m02.22s |
+39°48'08.90" |
|
|
|
|
AB-C |
6m9 |
7m8 |
120.4'' |
328° |
2017 |
|
|
|
|
|
|
|
AB-D |
6m9 |
13m9 |
167.4'' |
224° |
2002 |
|
|
|
|
|
|
|
AB-E |
6m9 |
12m1 |
456.0'' |
335° |
2002 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
102mm (28x) |
AB-C: Wide, moderately unequal pair. Little difference in color: Primary components appeared a bit more orange colored. |
|
Robert Zebahl
Leipzig (Germany) |
120mm (23x) |
AB-C: Easy to split with large angular distance and noticeable difference in brightness. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
AB: At zenith, but worth the effort to slew to. Another great 2+1. The tight pair [AB] is near equal and split a little more than a hairline |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
AB: One component of compicated 6 star system, some of which is split in 80mm finter. This is a close equal pair, ~2". |
|
|
|
★★
|
STF1964 & HU1167 |
HU1167 |
AB |
8m1 |
9m9 |
1.4'' |
80° |
2016 |
CrB |
15h38m12.91s |
+36°14'48.60" |
|
|
|
STF1964 |
AC |
8m1 |
8m1 |
14.5'' |
90° |
2017 |
|
|
|
|
|
|
STF1964 |
AD |
8m1 |
9m0 |
15.1'' |
84° |
2018 |
|
|
|
|
|
|
STF1964 |
CD |
8m1 |
9m0 |
1.5'' |
21° |
2019 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
16x70 |
STF1964 (AC): 2021-06-13: Beautiful double star with components of almost equal brightness and subtle color difference: white-blueish & slightly orange. |
|
René Merting
Drachhausen (Germany) |
18x70 |
STF1964 (AC): zu erkennen sind zwei gleich helle, sehr dicht stehende Sterne - Trennung ein wenig mehr als knapp |
|
René Merting
Drachhausen (Germany) |
100mm (20x) |
STF1964 (AC): bei 20x ein gut getrenntes Pärchen gleich heller Sterne, auffallend im Sternumfeld |
|
Robert Zebahl
Leipzig (Germany) |
102mm (62x) |
STF1964 (AC): Rather wide pair, equal without visible difference in color. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (16x) |
Dreifachstern nicht trennbar |
|
Robert Zebahl
Leipzig (Germany) |
120mm (23x) |
STF1964 (AC): Nice double star, well split with equally bright components. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
STF1964 (AC): Well split equal pair. I suspect B is pair as it is an elongated orange smear at 277x -- it is STF 1964CD. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
STF1964 (CD): Faint near equal pair about 3" separation. In the same field with HU 1167. Magnificent |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
HU1167 (AB): Bright star with much fainter pair, about 1" separation, 3-4 delta mag. In same field with STF 1964. Magnificent |
|
|
|
|
STF1989, pi UMi |
|
|
7m3 |
8m2 |
0.7'' |
23° |
2013 |
UMi |
15h39m38.61s |
+79°58'59.60" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
blickweise als 8 zu sehen, schwierig |
|
|
|
★
|
STF1967, 8 CrB, gamma CrB |
|
|
4m0 |
5m6 |
0.5'' |
110° |
2015 |
CrB |
15h42m44.57s |
+26°17'44.30" |
|
|
Robert Zebahl
Leipzig (Germany) |
152mm (300x) |
2021-07-23: Gamma CrB was only a few degrees above the house roof and the refractor was insufficiently cooled down. In no way visible as a double star. I used magnifications from 200x to 400x. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (667x) |
Definite mis-shape, oval to egg, observation made June 2019 |
|
|
|
|
STT303 |
|
AB |
7m7 |
8m1 |
1.6'' |
175° |
2019 |
Ser |
16h00m54.16s |
+13°16'18.20" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Near equal white, ~1.5". Nice! |
|
|
|
|
S676, rho CrB |
|
|
5m5 |
10m5 |
141.7'' |
47° |
2012 |
CrB |
16h01m02.65s |
+33°18'12.60" |
Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
Rho CrB. bright orange star with very obvious wide B, 3 delta mag |
|
|
|
★
|
STF2021, 49 Ser |
|
AB |
7m4 |
7m5 |
4.0'' |
358° |
2019 |
Her |
16h13m18.45s |
+13°31'37.20" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (57x) |
Lovely split. Almost equal pair with relatively close components. |
|
René Merting
Drachhausen (Germany) |
100mm (64x) |
bei 32x zeigen sich zwei gleich helle weiße Sterne, die sich gerade noch berühren - bei 64x dann knappe Trennung, B ist nur minimal schwächer |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
49 Ser. Light yellow orange, near equal, bright, wide ~4". Physical, 1354 year period |
|
Karsten Kopp
Köln (Germany) |
600mm (180x) |
Doppelstern ist gut zu trennen, bei fast identischer Helligkeit. Ein weißliches Augenpaar schaut mich an. |
|
|
|
|
A1642 |
|
|
8m9 |
9m4 |
0.8'' |
181° |
2016 |
Her |
16h13m43.62s |
+46°38'23.10" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Momentarily split with seeing, ~2 delta mag, <1". 188 year period |
|
|
|
|
sigma CrB, 17 CrB, STF2032 |
|
AB |
5m6 |
6m5 |
7.2'' |
239° |
2019 |
CrB |
16h14m40.85s |
+33°51'31.00" |
|
|
Robert Zebahl
Leipzig (Germany) |
16x70 |
2021-06-13: Clearly recognizable as a double star with a well visible difference in brightness. It appears clearly as '8' and is close to be separated. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (22x) |
At 22x clearly separated, but very close with a clear difference in brightness. At 57x easy without any noticeable difference in color. |
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
bei 20x zwei knapp zusammenstehende Sterne mit tiefer Einschnürung - bei 32x dann ein knapp getrenntes Pärchen - B-Komponente südwestlich gut eine halbe Größenklasse schwächer - beide Sterne mit weißem Brautkleid |
|
Stefan Loibl
Rosenheim (Germany) |
102mm (26x) |
Already split at 26x. Component A orange, B yellow. |
|
René Merting
Drachhausen (Germany) |
320mm (72x) |
bei 72x ein schick anzusehendes, knapp getrenntes Pärchen - A im Osten ist hellgelb - B ist vielleicht eine halbe Größenklasse schwächer und auch gelblich, aber nicht so stark wie A |
|
Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
Sigma CrB. AB nice bright half delta mag wide. two more stars in system, one (AC) closer fainter, other (AD) further away. |
|
Karsten Kopp
Köln (Germany) |
600mm (135x) |
Sehr einfaches, auffälliges Objekt im Okular, ansonsten keine weiteren Auffälligkeiten. |
|
|
|
|
STF2026 |
|
AB |
9m5 |
9m9 |
3.5'' |
16° |
2019 |
Her |
16h15m57.07s |
+07°21'24.80" |
|
|
René Merting
Drachhausen (Germany) |
100mm (107x) |
bei 64x sind die Sterne so schwach, dass ich hellere Sterne im Umfeld zum Fokussieren nutzen muss - beide Komponenten sind als 8 erkennbar, die Einschnürung ist aber nur in guten Momenten da - bei 107x dann gelingt die Trennung, B wirkt deutlich schwächer (in Wirklichkeit ist B nur 0m4 schwächer), aber vielleicht liegt es daran, dass die beiden Sterne ohnehin nur sehr schwach beobachtbar sind - das hat wenig Freude bereitet |
|
|
|
|
KUI72 |
|
|
5m5 |
10m0 |
2.1'' |
127° |
1997 |
Her |
16h19m55.24s |
+39°42'30.90" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Distinct faint point appears with perfect seeing ~2-3". Much smaller and fainter than A. |
|
|
|
★★★
|
rho Oph, 5 Oph |
H2 19 |
AB |
5m1 |
5m7 |
3.0'' |
334° |
2017 |
Oph |
16h25m35.03s |
-23°26'47.00" |
|
|
|
H2 19 |
AC |
5m1 |
7m3 |
149.2'' |
0° |
2000 |
|
|
|
|
|
|
H2 19 |
AD |
5m1 |
6m8 |
156.4'' |
252° |
2000 |
|
|
|
|
|
|
KOU63 |
CF |
5m8 |
11m7 |
4.8'' |
206° |
2000 |
|
|
|
|
|
|
BU1115 |
DE |
6m8 |
8m4 |
0.3'' |
196° |
2018 |
|
|
|
|
|
Stefan Loibl
Rosenheim (Germany) |
102mm (102x) |
AB: possible components (DE) and (CF) already visible at 27x magnification with ca. 2 arcmin distance |
|
|
|
★
|
STF2052 |
|
AB |
7m7 |
7m9 |
2.5'' |
118° |
2018 |
Her |
16h28m52.67s |
+18°24'50.60" |
|
|
|
|
AC |
7m7 |
11m8 |
141.4'' |
41° |
2015 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
100mm (107x) |
AB: bei 64x zwei gleichhelle Sterne, die sich gerade so berühren - bei 107x ein knapp getrenntes Pärchen, Komponente B im SO ist nur marginal schwächer |
|
Stefan Loibl
Rosenheim (Germany) |
102mm (102x) |
AB: Does not appear as a multiple star at 28x, elongated at 68x, splith with 102x. Component A blueish, B reddish. Observation of component C questionable. Occasional observation of a star at the presumably correct position. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
AB: Pretty pale yellow-orange pair of equal magnitude, about 2" separation. |
|
Karsten Kopp
Köln (Germany) |
600mm (180x) |
AB: Doppelstern war noch gut zu trennen, bei fast identischer Helligkeit. Komponente A wirkt weißlich, während die etwas schwächere Komponente B gelblich orange strahlt. |
|
|
|
|
alpha Sco, 21 Sco, Antares, GNT1 |
|
|
1m0 |
5m4 |
3.2'' |
276° |
2016 |
Sco |
16h29m24.47s |
-26°25'55.00" |
|
|
Mark McCarthy
Fremont (California/USA) |
80mm (133x) |
A shows as an airy disk with tremulous diffraction rings, but the very faint B star was steady within the diffraction ring. Current separation is 3.2" and its PA is to the west, which matched what I saw. A star is a bright orange, B is light green but faint |
|
|
|
★
|
lambda Oph, 10 Oph, STF2055, Marfic |
|
AB |
4m2 |
5m2 |
1.4'' |
44° |
2019 |
Oph |
16h30m54.84s |
+01°59'02.80" |
|
|
Stefan Loibl
Rosenheim (Germany) |
102mm (205x) |
components cannot be split at 205x |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
schöner Farbkontrast, lohnend. |
|
Sarah Gebauer
Germany |
150mm (160x) |
habe den Doppelstern zwar gefunden und konnte auch erkennen, dass es zwei Sterne sind, eine Trennung war aber heute Abend nicht möglich |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
Marfic. Nice blazing white pair, ~1 delta, ~2". 129 year period, but not much change in the next few years |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
getrennt |
|
|
|
★
|
STF2059 |
|
|
8m8 |
8m8 |
0.3'' |
179° |
2016 |
Her |
16h30m55.71s |
+38°03'52.60" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
nicht als DS gesehen |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Overlapping disks, notched. Need perfect seeing. This was 1.2" at Struve's discovery, so easier for him to see -- I doubt he would have found it now, near its closest separation. August 2017 |
|
|
|
★
|
STF2084, zeta Her, 40 Her |
|
|
3m0 |
5m4 |
1.6'' |
110° |
2019 |
Her |
16h41m17.16s |
+31°36'09.80" |
|
|
Sarah Gebauer
Germany |
100mm (136x) |
auf Anhieb ganz haarscharf getrennt, aber leider nur wenige Sekunden haltbar; dennoch erfolgreiche Trennung! |
|
Robert Zebahl
Leipzig (Germany) |
102mm (224x) |
Faint companion as distinct brightening on the first diffraction ring visible. In steadier moments visible as small, round condensation. |
|
Robert Zebahl
Leipzig (Germany) |
102mm (280x) |
After a longer, concentrated observation, a permanent brightening of the first diffraction ring of the primary component could be seen at the correct position angle. The brightening appeared only arch-shaped without any noticeable condensation. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
äußerst schwierig |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
Bei sehr ruhiger Luft ohne Probleme sichtbar, trotz der störenden Restkoma meines Refraktors |
|
Mark McCarthy
Fremont (California/USA) |
203mm (533x) |
Zeta Her. B was seen, not too difficult as a disk within the diffraction of bright A, just outside first ring so ~1.5", like a diamond ring, significant mag difference |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
nicht als DS gesehen |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
getrennt |
|
René Merting
Drachhausen (Germany) |
320mm (320x) |
in der Nacht konnte ich nur bis 320x gewinnbringend vergrößern - Komponente A zeigt schöne Beugungsscheibchen, B offenbarte sich mir nicht |
|
|
|
|
A349 |
|
|
10m7 |
10m9 |
0.7'' |
127° |
2018 |
Her |
16h41m17.67s |
+30°06'36.20" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
V908 Her. Elongation with averted vision, can't coax any better view. Light yellow. Physical, 135.69 year period |
|
|
|
|
STF2091 |
|
|
8m4 |
9m3 |
0.4'' |
324° |
2010 |
Her |
16h42m09.74s |
+41°11'42.90" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
nicht als DS gesehen |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
I "see" rod shape once I know it is 0.4" separation. Marginal. (This one 1.3" at Struve's discovery, so easy for him! August 2017) |
|
|
|
|
D15 |
|
|
9m0 |
9m3 |
0.6'' |
335° |
2016 |
Her |
16h43m56.29s |
+43°28'31.20" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Light orange elongated, with notch, near equal. (0.9" at discovery). |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Close split with seeing, slight mag difference, ivory white stars |
|
|
|
★★
|
52 Her |
A1866 |
BC |
9m5 |
9m6 |
0.3'' |
266° |
2012 |
Her |
16h49m14.20s |
+45°59'00.40" |
|
|
|
BU627 |
A-BC |
4m8 |
8m4 |
2.2'' |
44° |
2018 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
100mm (142x) |
BU627 (A-BC): bis 142x probiert, hat nicht funktioniert - der Helligkeitsunterschied ist vermutlich zu groß und das Beugungsscheibchen von A so hell wie BC selbst |
|
Robert Zebahl
Leipzig (Germany) |
102mm (280x) |
BU627 (A-BC): At 160x the faint component is already beginning to be visible as brightening in the first diffraction ring. At 280x the brightening is quite clearly visible and appears partly clear as a small knot in the first diffraction ring. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
BU627 (A-BC) |
|
Uwe Pilz
Leipzig (Germany) |
120mm (180x) |
BU627 (A-BC) |
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
BU627 (A-BC): 52 Her. B seen quite well, though only with seeing when bright white A's diffraction settles. B is a bluish disk ~2", very steady for a moment then lost again. Looking too long direct seems to make B disappear, A overpowers one's vision, but with a little averted vision B comes back into view. 1977 year period |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
BU627 (A-BC): 52 Her. Very bright white star with a companion disk 2", 4-5 delta mag. Wow! B appears as if it is illuminated by A's light. Did not detect BC, 0.3" |
|
|
|
★★
|
STF2107 |
|
AB |
6m9 |
8m5 |
1.5'' |
109° |
2018 |
Her |
16h51m50.10s |
+28°39'58.70" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Yellow and orange pair, very close ~1.5", 1 delta mag. Very pretty. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
Nice pair yellow and slightly blue two delta mag, about 1.5" (AC is 11.5 and much further separated) |
|
Karsten Kopp
Köln (Germany) |
600mm (385x) |
Doppelstern ist bei 180-facher Vergrößerung gerade so als 8 zu erkennen. Bei 385-facher Vergrößerung in den seltenen Augenblicken des ruhigen Seeings gerade so eben zu trennen. Sehr schwierig auch wegen des Helligkeitsunterschied von 1,6 mag. |
|
|
|
|
STF2118, 20 Dra |
|
AB |
7m1 |
7m3 |
0.9'' |
65° |
2018 |
Dra |
16h56m25.32s |
+65°02'20.60" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
sehr einfach |
|
|
|
|
STF2128 |
|
|
8m8 |
10m3 |
12.2'' |
43° |
2018 |
Dra |
17h03m18.66s |
+59°35'07.30" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (205x) |
Wide stars, light orange, ~2 delta mag. 1200 year period |
|
|
|
★★
|
mu Dra, 21 Dra, Alrakis, Arrakis |
STF2130 |
AB |
5m7 |
5m7 |
2.5'' |
2° |
2018 |
Dra |
17h05m20.20s |
+54°28'14.30" |
|
|
|
BU1088 |
AC |
5m7 |
13m7 |
12.2'' |
174° |
2015 |
|
|
|
|
|
Christopher Hay
Seeheim (Germany) |
80mm (100x) |
In May 2019 neatly split, no colours seen. A physical system with a period of 812 years. Periastron was in 1946, since then the distance is widening to reach 2.7“ in 2025 and 2.8“ in 2030 |
|
René Merting
Drachhausen (Germany) |
100mm (107x) |
AB: bei 107x zeigen sich zwei knapp getrennte Perlchen, beide gleichhell und weiß schimmernd - ein schickes Paar |
|
Robert Zebahl
Leipzig (Germany) |
102mm (125x) |
AB: Easy to separate. Beautiful sight. Components equally bright with no discernible color difference. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
AB: Mu Dra. "Arrakis" (which was the name of the planet in the book Dune, but means "Dancer" in Arabic). Light yellow-orange stars, well split, equal. 812 year period |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (460x) |
AB: gleich hell |
|
|
|
|
A1145 |
|
|
6m3 |
7m8 |
0.7'' |
340° |
2018 |
Oph |
17h08m13.65s |
-01°04'46.10" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (667x) |
Marginal observation of a very faint, very close-in star which briefly resolves as a point and not a flare. |
|
|
|
|
eta Oph, 35 Oph |
BU1118 |
AB |
3m0 |
3m3 |
0.5'' |
228° |
2019 |
Oph |
17h10m22.66s |
-15°43'30.50" |
|
|
|
BU1118 |
AB-C |
2m4 |
12m3 |
99.8'' |
148° |
2012 |
|
|
|
|
|
|
BU1118 |
AD |
2m4 |
11m2 |
101.2'' |
281° |
2012 |
|
|
|
|
|
|
DAL52 |
AE |
2m4 |
11m1 |
62.7'' |
317° |
2012 |
|
|
|
|
|
Stefan Loibl
Rosenheim (Germany) |
102mm (205x) |
B component recognizable in the airy disk, E component not visible |
|
|
|
|
STF2135 |
|
AB |
7m6 |
8m9 |
8.7'' |
195° |
2018 |
Her |
17h12m06.06s |
+21°13'44.40" |
|
|
|
|
AC |
7m6 |
12m9 |
162.1'' |
208° |
2015 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
AB: bei 64x ein locker getrenntes Pärchen - Komponente B im Süden halb so hell wie A - zurück auf 32x sind beide Sterne als enges Pärchen erkennbar, nicht zu knapp getrennt - noch weiter zurück auf 20x sehe ich ein längliches Sternchen, Trennung bei dieser Vergrößerung noch nicht möglich |
|
Mark McCarthy
Fremont (California/USA) |
203mm (667x) |
AB: Pretty yellow star with widely separated 2 delta mag bluish B. (Not physical) |
|
|
|
|
KUI79 |
|
AB |
10m0 |
10m2 |
0.3'' |
146° |
2016 |
Her |
17h12m07.78s |
+45°39'57.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Fine split ~1", noticeable mag difference. 12.91 year period! |
|
|
|
★★
|
STF2140, alpha Her, 64 Her, Ras Algethi |
|
AB |
3m5 |
5m4 |
5.0'' |
103° |
2019 |
Her |
17h14m38.86s |
+14°23'24.90" |
|
|
Robert Zebahl
Leipzig (Germany) |
55mm (41x) |
Well split with noticeable difference in brightness. |
|
René Merting
Drachhausen (Germany) |
100mm (64x) |
bei 32x ist noch nichts erkennbar - bei 64x wird östlich von Rasalgethi der schwache Begleiter B knapp getrennt sichtbar - A ist strahlend gelb, B mit einer Tendenz zum gelb, eher ein warmes weiß |
|
Uwe Pilz
Leipzig (Germany) |
105mm (88x) |
himmelblau und hellgelb, getrennt bei 53x |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
gelb-lachsfarben |
|
Robert Zebahl
Leipzig (Germany) |
120mm (100x) |
Easily split with noticeable difference in brightness. A: intensively orange colored, B: slightly orange. |
|
Karsten Kopp
Köln (Germany) |
140mm (94x) |
Konnte erst mit 94-facher Vergrößerung gut getrennt wahrgenommen werden. |
|
Sarah Gebauer
Germany |
150mm (85x) |
bei Halbmond auf der Schwäbischen Alb: sehr eng, aber sauber getrennt, eine Komponente ist viel heller und größer, mein Farbeindruck ist allerdings unerwartet eher gelb |
|
Sarah Gebauer
Germany |
150mm (160x) |
richtig gold, es strahlt mich richtiggehend an, auch sehr schön getrennt, ein toller Doppelstern! |
|
Mark McCarthy
Fremont (California/USA) |
203mm (667x) |
Rasalgethi. 8" inch mask due to seeing. AB orange and blue 4 delta mag. Faint AD seen very wide separation. pretty star. |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
gelblich und bläulicher Stern |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
Rasalgethi, Bright orange A & pale green much fainter B. Very nice! |
|
Karsten Kopp
Köln (Germany) |
600mm (135x) |
Leicht zu trennen. Komponente A erscheint orange, Komponente B gelblich. |
|
Karsten Kopp
Köln (Germany) |
600mm (180x) |
Doppelstern ist gut zu trennen. Komponente A erstrahlt orange und Komponente B gelblich. |
|
|
Jens Leich
Germany |
130mm |
|
|
|
|
|
SHJ243, 36 Oph |
|
AB |
5m1 |
5m1 |
5.1'' |
140° |
2018 |
Oph |
17h15m20.78s |
-26°36'06.10" |
|
|
|
|
AC |
5m1 |
6m5 |
731.6'' |
74° |
2000 |
|
|
|
|
|
|
|
AD |
5m1 |
7m8 |
276.9'' |
338° |
2000 |
|
|
|
|
|
|
|
AE |
5m1 |
12m3 |
38.2'' |
313° |
2000 |
|
|
|
|
|
Stefan Loibl
Rosenheim (Germany) |
102mm (68x) |
Komponente AB separated at 68x magnification, componente C at greater distance of 12.2 arcmin |
|
|
|
|
STF2153 |
|
|
9m4 |
9m7 |
1.4'' |
245° |
2017 |
Her |
17h17m53.03s |
+49°18'18.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Near equal, ~2", white |
|
|
|
★★★
|
BU628 |
|
|
9m5 |
9m6 |
0.6'' |
262° |
2016 |
Her |
17h18m22.22s |
+32°39'38.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
Wow split clean, amazing. No resolution at 667x but at 1067x two airy disks, sep by half disk, half delta mag. Remarkable |
|
|
|
|
DON832, xi Oph |
|
AB |
4m4 |
8m9 |
4.1'' |
27° |
2015 |
Oph |
17h21m00.37s |
-21°06'46.50" |
|
|
Stefan Loibl
Rosenheim (Germany) |
102mm (205x) |
fainter 9 mag component not visible |
|
|
|
★
|
COU415 |
|
|
8m8 |
9m8 |
0.2'' |
248° |
2010 |
Her |
17h22m04.55s |
+23°09'40.40" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
Notched elongation at 533x & 667x. I get an instantaneous split with perfect seeing at 1067x, it stays notched. ~1 delta. 90 year period. |
|
|
|
|
A351 |
|
AB |
9m7 |
9m9 |
0.5'' |
58° |
2016 |
Her |
17h29m20.05s |
+29°23'30.80" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Very finely split with just 333x, near equal light orange stars. Busy field, easy to make sketch to capture the orientation for short period project. 59 year period, near apastron, will tighten considerably by 2032. |
|
|
|
|
KUI83 |
|
AB |
9m8 |
10m4 |
0.2'' |
332° |
2008 |
Her |
17h37m10.76s |
+27°53'47.10" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
AC is an ordinary wide pair 2 delta mag ~10". AB is a hairline split with 533x, and an obvious well split with 667x. Light orange stars, ~1 delta mag. Short period, 24.1 years, nearly circular orbit so it will be fun to follow it around. |
|
|
|
|
STF2199 |
|
|
8m0 |
8m6 |
2.0'' |
54° |
2018 |
Dra |
17h38m38.32s |
+55°45'34.90" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
Light yellow stars, ~2" and ~1 delta mag. 1298 year period |
|
|
|
|
STF2218 |
|
|
7m1 |
8m4 |
1.5'' |
310° |
2015 |
Dra |
17h40m18.07s |
+63°40'31.40" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
~2 delta, split but quite close, with seeing. White A & yellow-white B. 2130 year period |
|
|
|
★★
|
STF2241, psi 1 Dra, 31 Dra |
|
AB |
4m6 |
5m6 |
29.6'' |
14° |
2019 |
Dra |
17h41m56.36s |
+72°08'55.80" |
Christopher Hay
Seeheim (Germany) |
15x45 |
Stabilised binoculars, handheld. Easily split. A appears pearl white, B brick red. A very fine pair for 15x. Resolved in stabilised 10x42 but not so pleasantly. Psi1 Dra is a physical double with a period of roughly 10,000 years. |
|
René Merting
Drachhausen (Germany) |
16x70 |
ein auffälliges Pärchen in einem wilden Sterngewimmel vieler heller Sterne, beide Komponenten sind knapp getrennt zu erkennen - Komponente B ist mindestens eine Größenklasse schwächer und strahlt nicht so schön reinweiß wie A |
|
Christopher Hay
Seeheim (Germany) |
80mm (30x) |
Widely split. A light yellow, B light blue. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (55x) |
weiß-orange |
|
|
|
|
HU1285 |
|
|
8m9 |
9m2 |
0.5'' |
211° |
2016 |
Her |
17h43m38.76s |
+22°36'43.20" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
unsicher, sehr schwierig |
|
|
|
|
STF2205 |
|
|
9m4 |
9m6 |
0.9'' |
11° |
2016 |
Her |
17h45m41.03s |
+17°43'00.70" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
Half delta mag light orange star about 1" separated (in this scope it is quite wide) |
|
|
|
|
mu Her, 86 Her |
STF2220 |
A-BC |
3m5 |
9m8 |
35.5'' |
249° |
2015 |
Her |
17h46m27.51s |
+27°43'14.30" |
|
|
|
AC7 |
BC |
10m2 |
10m7 |
0.8'' |
282° |
2015 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
120mm (86x) |
STF2220 (A-BC): Easy, pretty wide, unequal pair. A appeared yellowish-orange, BC was barely visible with direct vision. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
STF2220 (A-BC): Pretty, bright canary yellow A and much fainter bluish B. Nice! (Missed AC 7 BC which are near equal 0.6") |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
STF2220 (A-BC): Bright yellow with diffraction spikes and some haze around it (poor transparency). 4 delta mag small star on the edge of the haze, wide separation. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
STF2220 (A-BC): Bright white and 3-4 delta mag B, wide. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
AC7 (BC): Mu Her. Nice one to star with. STF 2220 A is a very bright light orange, and BC is widely separated blue, much fainter. I suspected B was also a pair at 333x, and could get a nice clean split with seeing at 533x, so I could tell an orientation and make a sketch (43-year period). Indeed it is a short period pair and I should be able to get at least a quarter turn out of it |
|
|
|
★★★
|
HU1288 |
|
|
8m3 |
9m4 |
0.4'' |
163° |
2016 |
Her |
17h47m09.16s |
+15°02'13.80" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
Awesome! clean split, very clean star images. Split by half disk, half delta mag. very cool great catch! suspected at 667x, ramped up power to 1067x to split. |
|
|
|
★
|
STT338 |
|
AB |
7m2 |
7m4 |
0.9'' |
168° |
2018 |
Her |
17h51m58.46s |
+15°19'34.90" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
getrennt |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Just split, a pair of bright near equal orange stars. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
Yellow-white very clean split stars seem more equal than what the data says |
|
|
|
|
A235 |
|
|
8m4 |
9m3 |
0.3'' |
69° |
2018 |
Her |
17h53m18.60s |
+24°59'29.00" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
Nice clean split, more than hairline, white stars, significant mag difference. With apodising mask. Currently at apastron, will make nearly half turn by 2040. |
|
|
|
★★
|
STF2308 |
40/41 Dra |
AB |
5m7 |
6m0 |
18.7'' |
232° |
2019 |
Dra |
18h00m09.07s |
+80°00'13.70" |
|
|
|
|
AC |
5m7 |
8m3 |
225.3'' |
129° |
2017 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
8x44 |
2020-06-27: The pair AB split, but very tight with components of equal brightness. In acute angle far apart the component C was also visible. |
|
Christopher Hay
Seeheim (Germany) |
15x45 |
AB: Clearly split, brighter component seems bluish. One of the finest doubles for 15x, hence my two-star rating. In 10x42 a difficult split at the limit. |
|
René Merting
Drachhausen (Germany) |
16x70 |
ein schön eng stehendes Pärchen, die Himmelsrichtungen erschließen sich mir hier leider nicht, aber die Komponenten sind beide ähnlich hell und weiß - schöner Anblick im Fernglas |
|
Christopher Hay
Seeheim (Germany) |
50mm (8x) |
AB: An elongated figure-8 very close to splitting |
|
Christopher Hay
Seeheim (Germany) |
80mm (30x) |
AB: Very clearly split, dominates the 2.5° FOV, with interesting sprinkling of fainter stars throughout the field. |
|
Robert Zebahl
Leipzig (Germany) |
102mm (28x) |
Very nice, slightly uneven pair. Components appeared yellowish-white. Beautiful surroundings. On the sketch the components A, B and C are visible. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (100x) |
AB: =40/41 Dra. Auffallend |
|
Christopher Hay
Seeheim (Germany) |
140mm (75x) |
AB: Wide apart, the pair absolutely dominates the field of view, with attractive sprinkling of fainter stars to the west. Very delicate colour contrast that was hard to grasp in 3-inch scope now becomes clear, component B (40 Dra) is bluish, component A (41 Dra) yellowish. |
|
|
|
|
STF2267 |
|
|
8m4 |
8m8 |
0.4'' |
281° |
2018 |
Her |
18h01m41.17s |
+40°10'41.90" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
nicht als DS gesehen |
|
|
|
|
STF2262, tau Oph |
|
AB |
5m3 |
5m9 |
1.5'' |
290° |
2019 |
Oph |
18h03m04.91s |
-08°10'48.90" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (240x) |
getrennt |
|
|
|
|
70 Oph, P Oph, STF2272 |
|
AB |
4m2 |
6m2 |
6.6'' |
122° |
2019 |
Oph |
18h05m27.37s |
+02°29'59.30" |
|
|
Uwe Pilz
Leipzig (Germany) |
16x70 |
nicht einfach; der helle ist gelb |
|
Christopher Hay
Seeheim (Germany) |
25x80 |
Clean split, component A appears yellowish.
70 Oph is the left nostril of the bull in the old constellation Taurus Poniatowski (Poniatowski’s Bull). On the connections to 67, 68 and 73 Oph see the entry on 67 Oph. |
|
René Merting
Drachhausen (Germany) |
100mm (64x) |
bei 32x wirkt der Stern nicht rund, sondern ein wenig nach SO verschmiert - bei 64x dann eindeutig ein knapp getrenntes schön anzusehendes Pärchen - Komponente A hell-gelb, B orange-gelb |
|
Jörg S. Schlimmer
Germany |
127mm (136x) |
easy to split |
|
Sarah Gebauer
Germany |
150mm (85x) |
ein ganz leicht goldener Farbeindruck des Sternpaares, die Sterne stehen recht dicht beisammen und sind dennoch schön getrennt |
|
Robert Zebahl
Leipzig (Germany) |
200mm (80x) |
Conditions in the target region: SQM-L 20.1
Well split at 80x. Brighter component appeared white, fainter one slightly orange. |
|
|
Berthold Fuchs
Wiesbaden (Germany) |
130mm |
difficult DS |
|
|
|
★
|
STT341 |
|
AB |
7m4 |
8m8 |
0.1'' |
86° |
2019 |
Her |
18h05m49.72s |
+21°26'45.60" |
|
|
|
|
AB-C |
7m2 |
10m6 |
28.2'' |
171° |
2015 |
|
|
|
|
|
|
|
AB-D |
7m2 |
10m5 |
39.5'' |
99° |
2009 |
|
|
|
|
|
|
|
AB-E |
7m2 |
10m2 |
66.5'' |
38° |
2018 |
|
|
|
|
|
|
|
AB-F |
7m2 |
11m5 |
111.6'' |
357° |
2009 |
|
|
|
|
|
|
|
AB-G |
7m2 |
7m6 |
132.5'' |
239° |
2018 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
AB-C: bei 32x ist Komponente C weit getrennt südlich von AB als Hauch von einem Stern erkennbar
AB-D: bei 32x ist Komponente D im Osten von AB ist ähnlich schwach erkennbar wie C im Süden - D ist etwas weiter weg als C
AB-E: bei 32x ist Komponente E im NO von AB ähnlich schwach erkennbar wie C im Süden und D im Osten - Entfernung zu A doppelt so weit wie AB-C
AB-F: bei 64x ist F im Norden von AB in vierfacher Entfernung AB-C erkennbar - im Grunde spiralen die vier schwachen Komponenten von Süden kommend von Osten nach Norden aus |
|
|
|
★
|
AC15, 99 Her |
|
AB |
5m1 |
9m0 |
1.4'' |
331° |
2018 |
Her |
18h07m01.61s |
+30°33'42.70" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (667x) |
99 Her.Very nice. B star resolves just outside first diffraction ring when that ring has faded with good seeing, a very fine faint point. large delta mag. There are many other pairings in this system, including 0.2" for the A star] |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
99 Her: ! Bright yellow star, suspected double at 277x but needed 553x to resolve a 9th mag orange B when seeing stilled, resolved as a point just outside where the diffraction ring was. CDSA notes: "Local, solar type binary, faint field. AB system 1.8 solar mass, p=56 y orbit r = 17 AU, e = 0.77, apastron 2025" |
|
|
|
|
STT524 |
|
|
7m9 |
8m9 |
0.5'' |
207° |
2018 |
Her |
18h07m29.52s |
+19°39'59.10" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
Suspected hairline with 333x, nice clean split at 533x, white stars, significant magnitude difference, ~0.5". 686 year period |
|
|
|
|
COU812 |
|
|
10m8 |
10m8 |
0.7'' |
265° |
2016 |
Her |
18h09m09.93s |
+31°29'10.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (667x) |
Elongation, marginal notch, but a bit too hazy to make a good observation |
|
|
|
|
STF2281, 73 Oph |
|
AB |
6m0 |
7m5 |
0.8'' |
283° |
2019 |
Oph |
18h09m33.86s |
+03°59'35.80" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
als 8 zu sehen, schwierig |
|
|
|
★★
|
HU674 |
|
|
7m7 |
8m6 |
0.7'' |
214° |
2018 |
Her |
18h09m40.64s |
+50°24'07.40" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
getrennt, ähnlich hell |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Split with seeing at 333x, near equal white. |
|
|
|
|
STF2289 |
|
|
6m7 |
7m2 |
1.2'' |
218° |
2019 |
Her |
18h10m08.69s |
+16°28'35.00" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Just split in 20" at 205x, but flaring. 333x had messy diffraction. 8" mask at 333x gave clean disks, split, ~0.7". Dull yellow and yellow-red colors. |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
Hauptstern gelb, Begleiter scheint bläulich |
|
|
|
|
STT353, phi Dra |
|
AB |
4m5 |
5m9 |
0.5'' |
266° |
2011 |
Dra |
18h20m45.44s |
+71°20'15.80" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
nicht als DS gesehen |
|
|
|
★
|
HU581 |
|
|
8m8 |
9m4 |
0.4'' |
122° |
2016 |
Her |
18h22m54.84s |
+14°58'11.00" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
Snowman at 533x & 667x, clean split at 1067x & apodising mask, one delta mag. Amazing. Coalesces into two points, can easily tell orientation & magnitude difference for sketch. At apastron, it is on a nearly edge on orientation, will close rapidly within the next ten years to be too close for me to detect. |
|
|
|
★
|
STF2323, 39 Dra |
|
AC |
5m1 |
8m0 |
88.9'' |
20° |
2017 |
Dra |
18h23m54.65s |
+58°48'02.10" |
|
|
|
|
AB |
5m1 |
8m1 |
3.8'' |
348° |
2018 |
|
|
|
|
|
Robert Zebahl
Leipzig (Germany) |
55mm (27x) |
AC: Pretty wide, unequal pair. Die brighter A component appeared white. |
|
Robert Zebahl
Leipzig (Germany) |
55mm (71x) |
AB: Very nice. The B component seemed to be comparable faint as the C component. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
AB: 39 Dra. Brilliant white A and slightly ruddy B, ~3 delta mag, ~4" sep. 3962.5 year period. |
|
|
|
★
|
STF2315 |
|
AB |
6m6 |
7m8 |
0.6'' |
117° |
2018 |
Her |
18h24m58.46s |
+27°23'41.30" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
als 8 zu sehen |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
! Hairline split @ 553x near equal mag. Suspected elongation at 277x. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
Barely split with seeing, resolves to two disks, more than hairline but almost 2 delta mag, very tough, need perfect seeing. 2094 year period |
|
|
|
|
STT351 & HU66 |
HU66 |
AB |
7m9 |
8m4 |
0.2'' |
197° |
2016 |
Dra |
18h25m18.20s |
+48°45'42.50" |
|
|
|
STT351 |
AC |
7m9 |
8m2 |
0.8'' |
26° |
2019 |
|
|
|
|
|
|
HU66 |
BC |
8m4 |
8m2 |
0.8'' |
26° |
2019 |
|
|
|
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (305x) |
STT351 (AC): Split, better with seeing, light orange stars, significant mag difference. Did not notice HU 66 AB, 7.9/8.4 0.1" or HU 66 BC, 8.40/8.25 0.9 -- need to go back to this one! |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
HU66 (BC): getrennt |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
HU66 (BC): Very fine near equal pair, yellowish A and blue-white B. ~1" or less. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
STT351 (AC): Orange stars, noticeable magnitude difference ~0.5, separated just less than ~1". What's curious is the AB pair is HU 66 AB listed as 7.90/8.40 0.1" currently, with HU 66 BC as 8.40/8.25 0.9". So my question is, if AC is physical, and if BC are physical too, why is AC uncertain? It would seem they should all be sharing orbits? Perhaps it just cries out for additional measures -- AB is grade 4 and BC is grade 5, so they are confident of physicality but there's not enough data to nail it down. |
|
|
|
★★
|
STT359 |
|
|
6m3 |
6m6 |
0.7'' |
3° |
2019 |
Her |
18h35m30.40s |
+23°36'19.90" |
|
|
Robert Zebahl
Leipzig (Germany) |
102mm (160x) |
2020-11-10: Clearly elongated with slight notching and little difference in brightness. I estimated the position angle to 0°. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (198x) |
leicht eingekerbt, Abstand 0“75 |
|
Mark McCarthy
Fremont (California/USA) |
203mm (667x) |
Kissing 8" 333x, hairline split 667x. Near equal white A and bluish white B. |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
getrennt |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Nice! ~0.8" equal yellow-orange stars. |
|
Uwe Pilz
Leipzig (Germany) |
320mm (388x) |
ein sehr ruhiger Abend gestattete die Nutzung von 12 Zoll |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Light yellow near equal split, very close. 219 year period |
|
|
|
★★
|
STT358 |
|
AB |
6m9 |
7m1 |
1.7'' |
146° |
2019 |
Her |
18h35m53.22s |
+16°58'32.50" |
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (110x) |
fast gleich hell, deutlich trennbar |
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Pretty, near equal white, perfect disks. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (205x) |
Yellow-white stars, half delta mag, well split. 380 year period |
|
|
|
|
STT363 |
|
|
7m5 |
8m1 |
0.6'' |
336° |
2018 |
Dra |
18h37m23.92s |
+77°41'12.40" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
als 8 zu sehen |
|
|
|
|
STF2367 |
|
AB |
7m7 |
8m0 |
0.4'' |
74° |
2019 |
Lyr |
18h41m16.36s |
+30°17'40.90" |
|
|
|
|
AB-C |
7m0 |
8m8 |
14.1'' |
192° |
2019 |
|
|
|
|
|
|
|
AB-D |
7m0 |
12m0 |
21.9'' |
84° |
2007 |
|
|
|
|
|
|
|
AB-E |
7m0 |
11m0 |
151.7'' |
341° |
2002 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
AB-C: bei 32x einfach zu trennen - A-Komponente leicht gelblich, Komponente C südlich ist deutlich schwächer und strahlt zinnober |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
AB: nicht als DS gesehen |
|
|
|
|
STF2398 |
|
AB |
9m1 |
10m0 |
11.3'' |
182° |
2019 |
Dra |
18h42m46.69s |
+59°37'49.40" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
Very light orange stars, ~1 delta mag, wide. 408 year period |
|
|
|
★★★
|
epsilon Lyr |
STFA37 |
AB-CD |
4m7 |
4m6 |
209.5'' |
172° |
2016 |
Lyr |
18h44m20.34s |
+39°40'12.40" |
|
|
|
STFA37 |
AI |
5m2 |
10m1 |
149.5'' |
137° |
2015 |
|
|
|
|
|
|
STF2382, 4 Lyr, epsilon 1 Lyr |
AB |
5m2 |
6m1 |
2.2'' |
345° |
2019 |
|
|
|
|
|
|
STF2383, 5 Lyr, epsilon 2 Lyr |
CD |
5m2 |
5m4 |
2.4'' |
74° |
2019 |
|
|
|
|
|
Christopher Hay
Seeheim (Germany) |
naked eye |
While waiting for Comet Neowise at 3 in the morning in July 2020 surprised myself with my first naked-eye separation of Alpha1 und Alpha2 Capricornis (observing site at 50° northern latitude, Alpha1/2 passing through meridian). Encouraged by this, I lay down and had a close look at Epsilon Lyrae, without really expecting to be able to split it naked-eye, having never succeeded previously. At first Epsilon Lyrae appeared as a very short dash of light. Then the dash resolved into two pinpoints. After 15 years in the hobby and at age 60, at last got Eps Lyr split! No precise prior PA knowledge. After memorising PA as seen naked-eye carefully, confirmed it with binoculars. Eps Lyr is the third-easiest physical double in the (northern hemisphere) summer sky for the naked eye, after Zeta UMa (much easier) und Alpha Lib (marginally easier). |
|
Christopher Hay
Seeheim (Germany) |
2x54 |
AB-CD: Clean split. Actually more pleasant than in 4x10 binoculars, presumably due to more steady handheld view. |
|
Robert Zebahl
Leipzig (Germany) |
55mm (59x) |
STF2382 (AB): At 42x slightly elongated, at 59x elongated and obviously notched. |
|
Robert Zebahl
Leipzig (Germany) |
55mm (59x) |
STF2383 (CD): At 42x clearly elongated, but without any visible notch. At 59x split with touching diffraction disks. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (57x) |
STF2382 (AB): Obviously seen as figure '8'. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (57x) |
STF2383 (CD): Split, but extremely tight with almost touching diffraction disks. |
|
René Merting
Drachhausen (Germany) |
76mm (95x) |
AB-CD: bei 29x schön getrennt erkennbar, ohne dass sich AB und CD schon trennen lassen
AB: bei 57x leicht länglich mit kleiner Einschnürung - bei 95x schön eng getrennt, B nördlich wirkt etwas schwächer- bei 127x wunderschön, das Sternpaar hat zwei Beugungsscheibchen, die wie ein Heiligenschein um die beiden Sterne stehen
CD: bei 57x eine 8 - bei 95x ein schön eng getrenntes Pärchen gleichheller Sterne - bei 127x wunderschön, das Sternpaar hat zwei Beugungsscheibchen, die wie ein Heiligenschein um die beiden Sterne stehen
EF und I: bei 127x sind alle drei Sterne (I 10.1 mag / E 12.3 mag / F 12.7 mag) erkennbar |
|
René Merting
Drachhausen (Germany) |
100mm (107x) |
AB: bei 64x ist das Sternpaar mit leichter Einschnürung und Nord-Süd-Ausdehnung erkennbar - beide Sterne stehen minimal enger zusammen als das südlichere Paar CD - bei 107x knappe Trennung, Komponente B nördlich ist mindestens eine halbe Größenklasse schwächer als A
CD: bei 64x als 8 mit Ost-West-Ausdehnung erkennbar - bei 107x knapp getrennt, beide Komponenten sind etwa gleich hell |
|
Sarah Gebauer
Germany |
100mm (136x) |
ein Test mit dem neuen Refraktor, um einen Vergleich zum 6''-Newton zu ziehen: bei 136x schon astrein getrennt, natürlich ziemlich eng und ganz fein getrennt, aber dennoch ein überraschend positives Ergebnis |
|
Robert Zebahl
Leipzig (Germany) |
102mm (125x) |
Stunning view of the components A-D and I! |
|
Uwe Pilz
Leipzig (Germany) |
105mm (26x) |
bei 22x nicht trennbar |
|
Jörg S. Schlimmer
Germany |
127mm (203x) |
easy to split |
|
Sarah Gebauer
Germany |
150mm (250x) |
August 2019 zum ersten Mal die nah beieinanderstehenden Komponenten sauber getrennt, ein grandioser Doppel-Doppel-Anblick |
|
Winfried Kräling
Marburg (Germany) |
152mm (175x) |
|
|
René Merting
Drachhausen (Germany) |
320mm (144x) |
bei 144x sind die Komponenten von AB und CD gerade so getrennt voneinander erkennbar, sie tanzen wie wild miteinander - mit Arperturmaske und Abblendung auf 120 mm zeigen die vier nun deutlich schwächeren Sterne schöne Beugungsscheibchen und sind besser getrennt voneinander sichtbar |
|
Uwe Pilz
Leipzig (Germany) |
320mm (200x) |
7 Komponenten!! A-B-C-D-E-F-I |
|
|
Berthold Fuchs
Wiesbaden (Germany) |
130mm |
Double-Double |
|
|
|
|
HU937 |
|
|
8m8 |
9m9 |
1.0'' |
333° |
2015 |
Dra |
18h46m13.38s |
+64°11'44.40" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Hairline split at 205x, more definite split with 333x, ~1 delta mag. A is yellow-white, B is a deeper yellow-orange. 225.53 year period |
|
|
|
|
HU1191 |
|
|
8m7 |
9m4 |
0.2'' |
258° |
2008 |
Lyr |
18h46m34.62s |
+38°21'04.00" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
V595 Lyr. Very tough! In unsettled seeing it is an elongation or lopsided at all powers. However at best moments it tightens enough to show a very subtle notch & also different brightness and color, A being light orange-yellow, and ~1 delta mag B a deeper orange. Discovered in 1902 at 0.2, it has only a 14.64 year period, it will make a rapid circuit to the other side by 2026 (though only 0.1"), and "widen" to 0.2" again by 2030. Should be fun to observe! |
|
|
|
|
STF2402 |
|
|
8m9 |
9m3 |
1.5'' |
208° |
2015 |
Aql |
18h49m44.14s |
+10°40'35.40" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (667x) |
Lovely near equal, tight but well split. Forms a perfect triangle with two other stars |
|
|
|
★
|
BU137 |
|
AB |
8m7 |
9m0 |
1.5'' |
169° |
2015 |
Lyr |
18h53m57.56s |
+37°22'49.70" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Fine near equal light orange, ~2". Rich finder field. In Steph 1 open cluster. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
Nice bright white near equal stars, 1.5", in a two plus one system with much fainter farther C. (AC 12th mag 23.6") |
|
|
|
|
A258 |
|
|
8m9 |
9m9 |
0.3'' |
236° |
2016 |
Lyr |
18h54m59.91s |
+30°52'45.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
Very tough. I get elongation at 553x, and more clear elongation at 667x, but no split, not even notching, more like an unevenly illuminated rod. Seeing not support higher power. |
|
|
|
|
BU648 |
|
AB |
5m3 |
8m0 |
1.3'' |
243° |
2015 |
Lyr |
18h57m01.61s |
+32°54'04.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
152mm (285x) |
Orange A and a just split, very small, very faint B, seen only with 285x --175x suspected, 456x image quality not good. Short period pair, it will make a half revolution by 2045 |
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Tigher pair (AB) 3 delta mag, at first diffraction, needed critical focus and seeing. Second pair (AB-C) very wide, rather much fainter. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
277x an orange not quite round disk, suspected a close pair. At 553x it splits with seeing, 0.8", 3 delta mag, in diffraction. |
|
|
|
|
STF2438 |
|
|
7m0 |
7m4 |
0.8'' |
357° |
2019 |
Dra |
18h57m28.47s |
+58°13'30.00" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
leicht; beide gleich hell |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Hairline split, white stars, near equal. 261.6 year period, look how fast it will move in the years 2150-2160! |
|
|
|
|
HU332 |
|
|
9m7 |
9m6 |
0.5'' |
267° |
2016 |
Vul |
18h59m03.72s |
+22°30'03.20" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
Beautiful close split, a little more than hairline, light orange stars near equal |
|
|
|
★
|
STF2437 |
|
|
8m4 |
8m8 |
0.6'' |
1° |
2019 |
Sge |
19h01m53.16s |
+19°10'11.70" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Small faint, notched peanut when seeing stills. Orange. |
|
|
|
|
AG227 |
|
|
10m7 |
11m2 |
7.1'' |
31° |
2015 |
Lyr |
19h05m22.05s |
+38°03'20.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
This is the brighter pair of the double-double pair mentioned in last entry (ALI 614). White stars, brilliant, wide separation |
|
|
|
|
STF2454 |
|
AB |
8m3 |
9m7 |
1.3'' |
291° |
2016 |
Lyr |
19h06m09.37s |
+30°26'18.80" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Fine yellowish pair, ~1.5" |
|
Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
Nice well split 2 delta mag, white A reddish B. (DRD 2 AC is 13.50 mag and 31.3") |
|
|
|
|
HEI568, 18 Aql |
|
|
5m4 |
6m4 |
0.3'' |
257° |
2015 |
Aql |
19h06m58.60s |
+11°04'16.70" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (410x) |
18 Aql. The A star is elongated / smeared but 410x does not resolve, seeing not good enough. |
|
|
|
|
STT369 |
|
|
7m8 |
7m9 |
0.7'' |
5° |
2018 |
Dra |
19h07m06.37s |
+72°04'26.60" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
zeitweilig gut erkennbar |
|
|
|
★
|
STF2486 |
|
AB |
6m5 |
6m7 |
7.1'' |
204° |
2019 |
Cyg |
19h12m05.03s |
+49°51'20.70" |
|
|
Robert Zebahl
Leipzig (Germany) |
16x70 |
2020-07-03: Fine split, but very tight with equally bright components. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (22x) |
At 22x barely split with a slight difference in brightness. At 44x the primary looked orange. I could not determine the color of the companion. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Near equal yellow pair. |
|
|
|
★
|
BU139 & STTA177, V338 Sge |
BU139 |
AB |
7m1 |
8m0 |
0.6'' |
136° |
2017 |
Sge |
19h12m34.45s |
+16°50'47.20" |
|
|
|
STTA177 |
AC |
7m1 |
8m0 |
98.4'' |
276° |
2017 |
|
|
|
|
|
|
BU139 |
AE |
7m1 |
11m2 |
28.8'' |
101° |
2015 |
|
|
|
|
|
|
BU139 |
CD |
8m0 |
11m2 |
138.9'' |
269° |
2015 |
|
|
|
|
|
Mark McCarthy
Fremont (California/USA) |
80mm (13x) |
STTA177 (AC): Near equal wide pair split in finder |
|
Mark McCarthy
Fremont (California/USA) |
203mm (667x) |
BU139 (AB): At the very best moments of seeing, which were fleeting, saw kissing disks to hairline split. Suspected elongation at 205x & 333x. |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
BU139 (AB): getrennt, schwierig, 0,6"? |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
BU139 (AB): V338 Sge. Overlapping airy disks. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
STTA177 (AC): Very wide orange-yellow and blue, ~2-3 delta mag. |
|
|
|
|
STF2484 |
|
|
7m9 |
9m5 |
2.1'' |
242° |
2017 |
Sge |
19h14m15.66s |
+19°03'50.30" |
|
|
René Merting
Drachhausen (Germany) |
100mm (142x) |
bis 142x probiert, keine Chance, Komponente B zeigt sich nicht |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Very close, ~2", orange, 1.5 delta mag. |
|
|
|
|
STF2525 |
|
AB |
8m2 |
8m4 |
2.1'' |
289° |
2018 |
Vul |
19h26m33.71s |
+27°19'21.90" |
|
|
Robert Zebahl
Leipzig (Germany) |
152mm (100x) |
2020-06-24: At 49x slightly elongated, at 69x just separated with visible difference in brightness. At 100x nice view with clear separation and slight difference in brightness, but no visible colors. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (205x) |
Near equal yellow-white stars, wide. An amazingly precise 882.894 year period. I will not notice the change |
|
|
|
|
STF2536 |
|
|
8m4 |
11m4 |
1.8'' |
120° |
2018 |
Sge |
19h31m37.80s |
+17°46'58.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (205x) |
Blue-white A and much fainter ~3 delta B, split close, dull orange color. Very fine. Physical with 672.5 year period |
|
|
|
|
STT375 |
|
|
7m7 |
8m9 |
0.6'' |
189° |
2017 |
Sge |
19h34m37.45s |
+18°07'41.20" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Sense an elongation or rod, marginal. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
Snowman at 205x, 333x, split with 533x, >1 delta mag, ~0.5". A is orange-yellow and B is blue-white. Physical with 682 year period, just coming apastron now. |
|
|
|
★★
|
STFA46, 16 Cyg |
|
AB |
6m0 |
6m2 |
39.5'' |
132° |
2019 |
Cyg |
19h41m49.09s |
+50°31'31.60" |
Christopher Hay
Seeheim (Germany) |
3x63 |
Self-built binoculars, hence the unusual specification. Made of top-quality teleconverters, apochromatic and sharp to the edge.
With naked eye under good suburban sky 16 Cyg is just seen. In the 3x binoculars the double is split into two finest points of light in good moments despite the low magnification. A physical pair according to Stelledoppie.
Two-star rating awarded because this is a true physical pair that can be split with the smallest binoculars and reveals increasingly more with growing binocular size (brightness disctinction between A and B in 7x50, colour distinction in 15x45). |
|
Christopher Hay
Seeheim (Germany) |
7x50 |
Finely split, A-component appears very slightly brighter than B-component. A very pleasing binocular pair. |
|
Christopher Hay
Seeheim (Germany) |
15x45 |
Wide split, very strong visual presence dominating 4.5° FOV. A-component very pale orange, B-component equally pale blue. |
|
Robert Zebahl
Leipzig (Germany) |
16x70 |
2021-06-01: Very striking, bright at moderate separation and small difference in brightness. White-yellowish & white. |
|
René Merting
Drachhausen (Germany) |
18x70 |
zwei ordentlich getrennte fast gleich helle Sterne - beide Komponenten sind reinweiß und die hellsten Sterne im unmittelbaren Umfeld - auffällig |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
16 Cyg: Wide equal orange-yellow, also split in 80mm finder |
|
|
|
|
KUI94 |
|
|
6m5 |
7m8 |
0.5'' |
158° |
2014 |
Cyg |
19h41m57.63s |
+40°15'14.60" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
unsicher, 8förmig |
|
|
|
|
STT383 |
|
AB |
7m0 |
8m3 |
0.8'' |
15° |
2014 |
Cyg |
19h42m56.26s |
+40°43'18.30" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
getrennt |
|
|
|
★
|
STF2579, delta Cyg, 18 Cyg |
|
AB |
2m9 |
6m3 |
2.7'' |
215° |
2017 |
Cyg |
19h44m58.44s |
+45°07'50.50" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (200x) |
At 100x only indicated. At 200x the much fainter companion is visible as a slightly elongated brightening on the first diffraction ring. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
blauweiß |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Very bright white with ruddy B, ~4", 4 delta mag. Nice! |
|
|
|
|
17 Cyg |
STF2580 |
AB |
5m1 |
9m2 |
26.1'' |
68° |
2015 |
Cyg |
19h46m25.60s |
+33°43'39.30" |
|
|
|
STF2580 |
AC |
5m1 |
9m4 |
107.9'' |
126° |
2013 |
|
|
|
|
|
|
WNO56 |
AF |
5m1 |
8m5 |
792.0'' |
235° |
2002 |
|
|
|
|
|
|
STF2580 |
BG |
9m2 |
8m6 |
817.6'' |
236° |
2010 |
|
|
|
|
|
|
STF2576 |
FG |
8m5 |
8m6 |
13.2'' |
155° |
2019 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
100mm (20x) |
AB: bei 20x locker getrennt - Komponente A satt gelb, B wegen des großen Helligkeitsunterschiedes gräulich-bräunlich |
|
Robert Zebahl
Leipzig (Germany) |
152mm (92x) |
2021-07-24: At 30x the components A, B & C are easily visible, whereby A & B are still quite close together. The bright component A appears in a pale yellow. At 92x also the pair FG is separated easily and looks less belonging to the system because of the wide separation to the other components. All in all it is worth observing. |
|
Winfried Kräling
Marburg (Germany) |
152mm (175x) |
A, B & C |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
AB: 17 Cyg: Yellow and slightly red, well separated, 1 delta mag. (This is an amazingly complex system with 11 stars in all sorts of combinations. Why not just call it an open cluster?) |
|
|
|
★
|
STT387 |
|
|
7m1 |
7m9 |
0.4'' |
105° |
2018 |
Cyg |
19h48m43.81s |
+35°18'41.30" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
zeitweise als 8 zu sehen |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
Red, very close pair? Seeing not supporting higher magnification. Marginal. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Overlapping disks, to a nearly hairline split with seeing. Half delta mag. |
|
|
|
|
DJU4, 13 Vul |
|
|
4m6 |
7m4 |
1.4'' |
246° |
2016 |
Vul |
19h53m27.69s |
+24°04'46.60" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
schwierig wegen Helligkeitsunterschied |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
13 Vul: Very bright white A and 3- delta mag B, ~1.5-2", west PA |
|
|
|
|
STF2596 |
|
|
7m3 |
8m7 |
2.1'' |
297° |
2016 |
Aql |
19h54m01.95s |
+15°17'31.70" |
|
|
René Merting
Drachhausen (Germany) |
100mm (107x) |
bei 107x ist Komponente B knapp abgesetzt nordwestlich von der A-Komponente sichtbar, knappe Trennung - Helligkeitsunterschied gut 1.5 Größenklassen |
|
Mark McCarthy
Fremont (California/USA) |
203mm (533x) |
Orange pair with 2 delta mag companion, about 2", well split. |
|
|
|
|
HO581 |
|
|
8m0 |
8m7 |
0.3'' |
133° |
2006 |
Cyg |
19h54m58.40s |
+41°52'17.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
Very subtly notched elongation at best, light orange stars. 25.63 year period, near apastron in a nearly circular orbit, it will widen slightly in the next 5 years and still be a detectable 0.2" in 2035. |
|
|
|
|
STT392 & STF2607 |
STT392 |
AB |
6m6 |
8m4 |
0.1'' |
184° |
1996 |
Cyg |
19h57m56.12s |
+42°15'38.90" |
|
|
|
STF2607 |
AB-C |
6m6 |
9m1 |
3.0'' |
289° |
2012 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
100mm (107x) |
STF2607 (AB-C): bei 107x ist C knapp westlich von AB zu erkennen, in guten Momenten sind die Komponenten getrennt sichtbar - trotz des großen Helligkeitsunterschiedes von schätzungsweise 1,5 bis 2 Größenklassen wirkt C ggü. AB auch erstaunlich weißlich |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
STF2607 (AB-C): Very close clean split though B is in A's diffraction, somewhat bluish. |
|
|
|
★★
|
STF2606 |
|
AB |
7m7 |
8m4 |
0.7'' |
146° |
2017 |
Cyg |
19h58m32.66s |
+33°16'38.80" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
sehr schwierig, Luftunruhe |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Hair split to clean split when seeing stills and there is only an airy disk. Near equal, half a delta mag. ~0.8" |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Close pair 2 delta mag. |
|
|
|
|
STF2613 |
|
AB |
7m5 |
8m0 |
3.5'' |
355° |
2019 |
Aql |
20h01m26.66s |
+10°44'54.80" |
|
|
René Merting
Drachhausen (Germany) |
100mm (64x) |
64x reicht für die Trennung, dann stehen die beiden Sterne aber noch sehr dicht - beide mit gleicher Helligkeit und strahlend weiß - schick |
|
Mark McCarthy
Fremont (California/USA) |
152mm (285x) |
White, ~1 delta mag, nice wide split |
|
|
|
|
STT395, 16 Vul |
|
|
5m8 |
6m2 |
0.7'' |
128° |
2019 |
Vul |
20h02m01.45s |
+24°56'16.80" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (667x) |
16 Vul. Hairline split at 8" 333x. At 667x I see a more definite split. It appears only half delta mag, rather than the 1 delta mag in Sky Tools. Nice star. |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
fast getrennt, eher 8, ähnlich hell |
|
|
|
|
STF2658 |
|
AB |
7m2 |
9m4 |
5.4'' |
106° |
2015 |
Cyg |
20h13m40.74s |
+53°07'30.30" |
|
|
René Merting
Drachhausen (Germany) |
100mm (107x) |
bei 107x ist Komponente B schwach erkennbar östlich von A, es ist schon ordentlich Luft zwischen den beiden - Helligkeitsunterschied 2 Magnituden |
|
Uwe Pilz
Leipzig (Germany) |
105mm (144x) |
orangegelb |
|
|
|
|
A1427 & STF2668 |
A1427 |
AB |
6m6 |
8m2 |
0.3'' |
130° |
2008 |
Cyg |
20h20m15.22s |
+39°24'11.80" |
|
|
|
STF2668 |
AB-C |
6m3 |
8m5 |
3.5'' |
280° |
2016 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
100mm (107x) |
STF2668 (AB-C): bei 64x klebt Komponente C ganz dicht westlich an AB - Helligkeitsunterschied gut 2.5 Größenklassen - bei 107x sind beide Sterne eindeutig knapp getrennt |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
STF2668 (AB-C): White and reddish-brown B, ~3 delta mag., 2" or so. |
|
|
|
★
|
COU327 |
|
AB |
9m1 |
9m1 |
0.2'' |
245° |
2019 |
Del |
20h21m35.69s |
+19°29'40.10" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
The AB-C pair is easy at 205x, C is a faint star ~4" separated from bright A (8.41/11.97 4.0"). AB is much more difficult. At 1067x it is mostly overlapping disks & I can tell its orientation. But at repeated best moments, I get an instant of the finest hairline split with noticeable magnitude difference & I can estimate an orientation relative to nearby stars. It's PA [246°] is nearly perpendicular to AB-C [131°] -- this is how I confirmed I have it. Cocteau discovered it in 1968 with the Nice 30-inch refractor at 0.2". 42.46 year period, last observation in 2005, with grade 3 orbit (which is certain but not definitive). It is currently coming off apastron with the current orbital solution at 0.167" separation. It will tighten very rapidly the next few years, but even on the opposite side of it's orbit it will not be detectable by me, I need to wait until 2050 to try again -- but since the PA will be similar I won't notice that change. I can only look forward to the tightening and maybe detectability again. If is the 0.167" is correct I have exceeded the Raleigh, Dawes, and Sparrow criteria and it's a new personal best -- and given I did not split some similar pairs later in the night, I was very lucky with the seeing at the time of the observation |
|
|
|
★
|
A288 |
|
|
8m7 |
9m0 |
0.2'' |
279° |
2006 |
Del |
20h23m08.98s |
+20°51'51.10" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
Hairline split, noticeable mag difference, white. Very fine pair. 163y period, it won't make an appreciable change in my time, though it will widen to the 1901 discovery separation of 0.3" in 2075 |
|
|
|
|
rho Cap, 11 Cap |
SHJ323 |
AB |
5m0 |
6m9 |
1.7'' |
190° |
2018 |
Cap |
20h28m51.62s |
-17°48'49.20" |
|
|
|
BU61 |
AC |
5m0 |
13m3 |
53.5'' |
149° |
2015 |
|
|
|
|
|
|
SHJ323 |
AD |
5m0 |
6m7 |
258.7'' |
150° |
2011 |
|
|
|
|
|
|
BU61 |
BC |
6m9 |
12m5 |
53.5'' |
149° |
2015 |
|
|
|
|
|
|
DOB13 |
DE |
6m7 |
10m6 |
54.3'' |
96° |
1999 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
12x50 |
AD: einfach, ein helles, weit auseinander stehendes Paar - Komponente B im SO ist gut 1.5 Magnituden schwächer und wirkt grau ggü. der weiß strahlenden Komponente A |
|
|
|
|
A610 |
|
|
9m5 |
9m9 |
0.5'' |
93° |
2018 |
Del |
20h29m02.58s |
+07°09'29.30" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Very finely split, white near equal, nice. 170.62y period, will make less than a quarter turn the next couple of decades. |
|
|
|
|
STF2690 & HJ269 & DA1 |
STF2690 |
A-BC |
7m1 |
7m4 |
17.8'' |
255° |
2019 |
Del |
20h31m11.94s |
+11°15'33.70" |
|
|
|
HJ269 |
AD |
7m1 |
12m1 |
23.0'' |
108° |
2016 |
|
|
|
|
|
|
DA1 |
BC |
7m9 |
8m0 |
0.3'' |
184° |
2016 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
10x50 |
STF2690 (A-BC): ein ganz enges Sternpaar mit zwei gleich hellen Sternen - ich würde beide als 8 mit tiefer Einschnürung bezeichnen, also kurz vor der Trennung |
|
Robert Zebahl
Leipzig (Germany) |
16x70 |
STF2690 (A-BC): 2020-08-19: Striking, moderately bright with nice separation of the similarly bright components in nice environment. The eastern component seemed slightly brighter and colorwise cooler. |
|
Uwe Pilz
Leipzig (Germany) |
16x70 |
STF2690 (A-BC) |
|
René Merting
Drachhausen (Germany) |
100mm (20x) |
STF2690 (A-BC): bei 32x ein schön getrenntes Sternpaar mit leichtem Farbkontrast - Komponente A im Osten ist weiß, BC im Westen ist leicht gelblich und dumpfer, aber kaum ein Helligkeitsunterschied zwischen beiden Sternen - zurück auf 20x ist das Paar noch schöner anzusehen, weil beide Sterne dichter zusammen stehen |
|
Robert Zebahl
Leipzig (Germany) |
200mm (37x) |
STF2690 (A-BC): Conditions in the target region: NELM 5m4+, SQM-L 20.6
Evident double star with almost equally bright components and no noticeable contrast in color. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
STF2690 (A-BC): Widely separated near equal white stars. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
DA1 (BC): This is part of STF 2690 A-BC, which is a white, wide, near equal, pair (7.12/7.39 17.7") observed with 8-inch at 205x. I suspected BC at 8-inch 333x, & had overlapping disks with 8-inch 533x. With 20-inch 533x I see a hairline split, slight magnitude difference. Seeing is not supporting it well, but it's clear. Very nice. Dawes discovered in 1840 at 0.7" -- probably with his 8-inch Cooke refractor -- so at current 0.369" it's not surprising I only had overlapping disks at 8-inch. It's a physical pair, with a 236.52 year period, and will widen another 0.1" in the next 15 years |
|
|
|
★
|
STF2695 |
|
|
6m6 |
8m8 |
0.4'' |
259° |
2016 |
Vul |
20h31m58.19s |
+25°48'18.10" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
Using 8" mask at 667x, no sign of elongation. With 20" and progressively higher magnifications, I can get to olive shape at 1067x, but extremely marginal. [0.8" at discovery, so easier for Struve] |
|
|
|
|
J1 |
|
AB |
10m0 |
10m6 |
1.9'' |
58° |
2018 |
Del |
20h32m52.76s |
+11°44'37.20" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
Nice close pair, well split ~2", equal. Physical, at apastron, 528.391 year period (to be exact!) |
|
|
|
|
HEI7, VW Cep |
|
|
7m7 |
10m5 |
0.7'' |
231° |
2007 |
Cep |
20h37m21.54s |
+75°36'01.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Just glimpsed a speck in the diffraction ring when seeing stills, marginal |
|
|
|
|
STT410 |
|
AB |
6m7 |
6m8 |
0.9'' |
3° |
2018 |
Cyg |
20h39m33.31s |
+40°34'46.80" |
|
|
|
|
AB-C |
6m8 |
8m7 |
68.6'' |
70° |
2018 |
|
|
|
|
|
|
|
AB-D |
6m8 |
10m0 |
106.6'' |
327° |
2018 |
|
|
|
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (198x) |
AB: nur mäßig schwierig, Abstand 0“87 |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
AB: nicht getrennt |
|
Robert Zebahl
Leipzig (Germany) |
152mm (270x) |
All four components easily visible. The pair AB shows two clear, equally bright, overlapping diffraction disks. |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
AB: gleich hell, getrennt |
|
|
|
|
HDS2947 |
|
|
7m3 |
8m1 |
0.2'' |
114° |
2019 |
Del |
20h40m35.25s |
+15°38'35.30" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
With apodising mask. Not round is best I can say, marginal. Coming off apastron and only getting more difficult. Discovered 1991 by the Hipparcos satellite at 0.2" |
|
|
|
|
STF2723 |
|
AB |
7m0 |
8m3 |
1.0'' |
140° |
2018 |
Del |
20h44m54.58s |
+12°18'45.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Very nice, light blue A and light yellow B, fine split, almost 2 delta mag. Really nice pair |
|
|
|
★★
|
STF2725 |
|
AB |
7m5 |
8m2 |
6.1'' |
12° |
2018 |
Del |
20h46m13.31s |
+15°54'26.40" |
|
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
bei 32x ein schöner Kontrast zum 15' nördlich stehenden viel helleren Sternpaar STF2727 - hier bei dem wesentlich schwächeren Sternpaar zeigt sich bei 32x die Komponente B knapp getrennt nördlich von A - Helligkeitsunterschied etwas mehr als eine halbe Magnitude, aber Komponente A ist noch deutlich schwächer als die Komponente B von STF2727 |
|
Sarah Gebauer
Germany |
100mm (45x) |
das Doppel lässt sich bei 45x sauber trennen und bildet mit Gamma2 Delphini ein optisches Doppel-Doppel, da beide Doppelsterne sehr gut in ein Gesichtsfeld passen |
|
Uwe Pilz
Leipzig (Germany) |
105mm (66x) |
im selben Feld mit gamma Del |
|
Uwe Pilz
Leipzig (Germany) |
105mm (88x) |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
OR Del. Light yellow stars, half delta mag, wide. Physical pair with a 2945.18 year period. In same field with bright pair STF 2727 |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Super wide, 1 magnitude difference, both faint yellow-white. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Easy, half delta mag and wide. I was after the super close WSI 110 Aa-Ab 0.1" but had no hope of seeing it. |
|
|
Berthold Fuchs
Wiesbaden (Germany) |
130mm |
close DS |
|
|
|
★★
|
STF2727, 12 Del, gamma Del |
|
AB |
4m4 |
5m0 |
8.9'' |
265° |
2019 |
Del |
20h46m39.50s |
+16°07'27.40" |
|
|
Christopher Hay
Seeheim (Germany) |
8x42 |
On tripod. Definite elongation, and eastern end of elongation (i.e. component A) is definitely brighter than the other end. PA estimated at 240° without prior knowledge. |
|
Christopher Hay
Seeheim (Germany) |
15x45 |
Stabilised binoculars, handheld. A very elongated figure-8 very close to popping apart. According to Stelledoppie a physical double with a period of 3249 years. Observed in June 2019 when separation was 8,89“. Will be 8.67“ in 2030 according to Stelledoppie. |
|
Christopher Hay
Seeheim (Germany) |
18x80 |
Very tight pair but clearly split with black in-between. Observed in July 2019 when separation was 8,89“. An excellent object to test the resolution of large binoculars. Struve 2725 a few arcminutes to the southwest is a further good test object for magnifications >20x. |
|
Christopher Hay
Seeheim (Germany) |
40x80 |
Widely split, visually strong, dominating the field of view. Component A appears yellowish compared to component B. Struve 2725 in same FOV finely split. |
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
bei 32x knapp getrennt - Komponente A ist schön gelb, B im Westen ist gut 1.5 Magnituden schwächer (lt. Stelle Doppie Helligkeitsunterschied nur 0.67 mag) - zusammen mit dem wesentlich schwächeren STF2525 gut 15' südlich sehenswert |
|
Sarah Gebauer
Germany |
100mm (45x) |
bei 45x sauber getrennt und zusammen mit dem DS STF 2725 in einem Gesichtsfeld, dadurch wirken sie wie ein optisches Doppel-Doppel, sehr schön! Beide DS bilden auch einen auffälligen Lichthof |
|
Uwe Pilz
Leipzig (Germany) |
105mm (66x) |
im selben Feld mit STF2725 |
|
Uwe Pilz
Leipzig (Germany) |
105mm (144x) |
schon trennbar bei 26x. In einem Feld mit STF2725 |
|
Mark McCarthy
Fremont (California/USA) |
152mm (285x) |
Gam 2 Del. ! Most beautiful light orange-yellow A and ~1 delta mag blue-green B |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
Gamma Delphinus. Rich gold-yellow A, blue-white B, ~6" separation estimated by eye. Very pretty pair. |
|
|
|
★
|
STT413, 54 Cyg, lambda Cyg |
|
AB |
4m7 |
6m3 |
0.9'' |
3° |
2018 |
Cyg |
20h47m24.53s |
+36°29'26.70" |
|
|
Robert Zebahl
Leipzig (Germany) |
102mm (280x) |
The diffraction disk of the primary component was slightly elongated towards north. The air here was however a bit too unsteady for an accurate observation. |
|
Uwe Pilz
Leipzig (Germany) |
105mm |
schwierig |
|
Robert Zebahl
Leipzig (Germany) |
152mm (300x) |
Observation with an achromat. The fainter component was visible as a permanent brightening of the first diffraction ring. |
|
Robert Zebahl
Leipzig (Germany) |
152mm (300x) |
2020-08-24: Observation with an ED refractor. At 171x partially, at 200x clearly visible as '8'. At 300x two clear, overlapping diffraction disks of differently bright components. |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
schwierig aber getrennt |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Lambda Cyg: ~1.5 delta mag, blue-white. Bright mess resolves to two disks 0.8-1.0", with seeing. |
|
|
|
|
BU155 |
|
AB |
7m4 |
8m1 |
0.7'' |
41° |
2018 |
Cyg |
20h51m05.41s |
+51°25'01.70" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
getrennt |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Clean split, nice disks, 1 delta mag, ~1". Pale yellow and pale easter egg blue. |
|
|
|
|
A613 |
|
|
9m1 |
9m0 |
0.8'' |
327° |
2017 |
Del |
20h51m54.49s |
+05°44'29.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (533x) |
Getting the briefest hairline split, but this one is very marginal seeing is a problem |
|
|
|
|
STT418 |
|
|
8m2 |
8m3 |
0.9'' |
284° |
2018 |
Cyg |
20h54m49.84s |
+32°42'23.20" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
getrennt, gleich hell |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Near equal 1" split, white. |
|
|
|
★
|
STF2737, epsilon Equ, 1 Equ |
|
AB |
6m0 |
6m3 |
0.1'' |
280° |
2019 |
Equ |
20h59m04.54s |
+04°17'37.80" |
|
|
|
|
AD |
6m0 |
13m1 |
69.3'' |
293° |
2013 |
|
|
|
|
|
|
|
AB-C |
5m3 |
7m0 |
10.6'' |
67° |
2019 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
12x50 |
AB-C: in ruhigen Momenten präsentieren sich beide Sterne länglich mit Einschnürung, dann sieht das System aus wie eine kleine Ameise |
|
Robert Zebahl
Leipzig (Germany) |
70mm (22x) |
AB-C: At 22x well separated, but still relatively close together with a clear difference in brightness. At 44x AB looked rather white. The color of C was not apparent. |
|
Christopher Hay
Seeheim (Germany) |
80mm (30x) |
AB-C: Well split, C bluish, AB no definite colour, a nice pair at this power. According to Stelledoppie B and C are a physical pair with a period of 5200 years, and A and B are again a physical pair with a period of 104 years. |
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
AB-C: bei 32x knapp getrennt - Komponente AB mit einem schönen cremegelb, C steht nordöstlich und ist gut 1.5 Größenklassen schwächer |
|
Sarah Gebauer
Germany |
100mm (45x) |
AB-C: bei 45x ganz eng, aber sauber getrennt, die hellere Komponente AB ist gelbstichig und die nordöstliche, schwächere Komponente C hat phasenweise einen Blaustich, wie ein ganz enger, ganz kleiner und schwächerer Albireo |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
AB-C: Easy yellow stars, very wide, 1 delta mag. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
AB: 1 Equ / Epsilon Equ / Strongly feel an oval AB pairing, marginal |
|
|
Berthold Fuchs
Wiesbaden (Germany) |
130mm |
AB-C: close DS |
|
|
|
|
59 Cyg, STF2743 |
MCA65 |
Aa-Ab |
4m8 |
7m6 |
0.1'' |
334° |
2015 |
Cyg |
20h59m49.55s |
+47°31'15.40" |
|
|
|
STF2743 |
AB |
4m7 |
9m4 |
21.0'' |
353° |
2012 |
|
|
|
|
|
|
STF2743 |
AC |
4m7 |
11m6 |
26.5'' |
140° |
2012 |
|
|
|
|
|
|
STF2743 |
AD |
4m7 |
11m2 |
39.3'' |
222° |
2012 |
|
|
|
|
|
|
STF2743 |
AE |
4m7 |
12m0 |
70.6'' |
59° |
2003 |
|
|
|
|
|
Christopher Hay
Seeheim (Germany) |
125mm (64x) |
AB: Widely split and striking in field of view, as the pair is a little outside of the star cloud at the swan's tail that adjoins to the south. The A component appears yellowish. The attraction lies in the B component with delta-mag 4m6, which presents as a fine grey-blue pinprick of light. Alias 59 Cygni. |
|
René Merting
Drachhausen (Germany) |
320mm (72x) |
AB: bei 45x ist Komponente B nördlich von A erkennbar - Komponente A strahlend weiß, bei B ist keine Farbe erkennbar, mindestens 4 Größenklassen Helligkeitsunterschied
AD: bei 72x ist Komponente D südwestlich von A in doppeltem Abstand wie AB erkennbar
AE: bei 72x ist Komponente E nordöstlich von A in doppeltem Abstand wie AD und noch schwächer als D erkennbar |
|
|
|
★
|
BU69 |
|
AB |
8m3 |
9m8 |
0.4'' |
6° |
2017 |
Vul |
21h02m36.08s |
+21°41'28.20" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
I sense overlapping disks at 553x, but marginal. |
|
|
|
★
|
BU1138 |
|
AB |
7m1 |
7m3 |
0.1'' |
172° |
2006 |
Cyg |
21h02m48.62s |
+45°50'56.00" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
Notched elongation with seeing and apodising mask, white, can tell A and B's orientation by difference in magnitude. Current separation 0.155". 314 year period, it will only make modest position angle change in my time. Burnham discovered in 1888 with the Lick 36-inch at 0.3"! It seems Hough also discovered it in 1888 but published his results later, HO 282 |
|
|
|
|
STF2744 |
|
AB |
6m8 |
7m3 |
1.2'' |
108° |
2019 |
Aqr |
21h03m03.09s |
+01°31'55.90" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
getrennt |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Split, ~1.5", near equal yellow-orange stars |
|
|
|
★★★
|
STF2758, 61 Cyg |
|
AB |
5m2 |
6m0 |
31.8'' |
153° |
2019 |
Cyg |
21h06m53.95s |
+38°44'57.90" |
|
|
Christopher Hay
Seeheim (Germany) |
8x42 |
On tripod. Clearly split, northern component A substantially brighter than B. Both orange, whereby A is distinctly more yellowish than B (sky quality similar to that of earlier 15x45 and 10x42 observations). Also seems to be split using the 8x42 handheld, but hand tremor makes this uncertain. |
|
Christopher Hay
Seeheim (Germany) |
15x45 |
Clear to wide separation. Both components of orange hue. Brighter northern component seemed to go slightly into yellow. In 10x42 also clearly split, northern component of orange hue, southern component of indeterminate colour (sky not quite dark enough at the time to see 61 Cyg naked-eye). Piazzi’s Flying Star, flying more than 5” per year to the northeast, and a true physical double with a period of 678 years. |
|
Robert Zebahl
Leipzig (Germany) |
16x70 |
2021-06-14: Beautiful sight. Bright orange & orange. |
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
bei 32x sind beide Sterne gut getrennt, Komponente A strahlt in einem schmutzig dunklem gelb, schwächere Komponente B leicht orange |
|
Uwe Pilz
Leipzig (Germany) |
105mm (200x) |
gelb und orange. Der weitere Stern im Bild ist TYC 3168-6781 |
|
Uwe Pilz
Leipzig (Germany) |
105mm (200x) |
TYC 3168-5901 kann dazu dienen, den sich ändernden Positionswinkel abzuschätzen. |
|
Jörg S. Schlimmer
Germany |
127mm (203x) |
Intensive Farbe |
|
Robert Zebahl
Leipzig (Germany) |
152mm (22x) |
2020-06-24: Beautifully separated, bright, striking, especially the colors: bright orange and orange. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (121x) |
61 Cyg. Nice near equal wide orange pair, bright [18 stars in system -- if so should be an OC] |
|
|
Berthold Fuchs
Wiesbaden (Germany) |
130mm |
easy DS |
|
|
|
|
A884 |
|
|
8m7 |
9m5 |
0.4'' |
111° |
2016 |
Cyg |
21h13m20.32s |
+46°54'55.50" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
Excellent pair, nicely split, nearly 1 delta mag, white A and blue-white B |
|
|
|
|
BU270 & S781 |
BU270 |
AB |
7m4 |
9m4 |
0.5'' |
352° |
2016 |
Equ |
21h13m27.24s |
+07°13'04.90" |
|
|
|
BU270 |
AB-C |
7m2 |
14m0 |
30.8'' |
26° |
2014 |
|
|
|
|
|
|
S781 |
AB-D |
7m2 |
7m2 |
184.1'' |
172° |
2014 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
12x50 |
S781 (AB-D): ein sehr helles Sternpaar, weit auseinander stehend - beide gehen gerade so als Doppelsternpaar durch, im Umfeld gibt es einige gleich helle Sterne |
|
Mark McCarthy
Fremont (California/USA) |
80mm (13x) |
S781 (AB-D): Finder split, super-wide, equal yellow-orange stars. I looked at the time in case one of these stars had a close pair, I did not see any -- checking data later one of them is a BU 270, 7.42/9.40 0.5" |
|
|
|
|
H1 48 |
|
|
7m2 |
7m3 |
0.7'' |
245° |
2019 |
Cep |
21h13m42.46s |
+64°24'15.10" |
|
|
Robert Zebahl
Leipzig (Germany) |
152mm (270x) |
Clearly elongated, of equal brightness with partly visible, slight notching. |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
getrennt |
|
|
|
|
STF2783 |
|
|
7m7 |
8m1 |
0.7'' |
349° |
2019 |
Cep |
21h14m04.90s |
+58°17'49.80" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
nicht leicht trennbar wegen Luftunruhe |
|
|
|
|
AGC13, tau Cyg |
|
AB |
3m8 |
6m6 |
1.1'' |
190° |
2017 |
Cyg |
21h14m47.49s |
+38°02'43.10" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (667x) |
Tau Cyg. I get a persistent brightening in A's diffraction. The brightening holds steady in one spot of A's diffraction wobble, and it's a different color: orange compared with A's yellow-white. Needed the 8-inch mask to reduce A's disk size |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Tau Cygni: Near equal orange with fainter nearby, could be triple. (There are 13 stars in the system. They ought to just call it an open cluster) |
|
|
|
|
STF2807 |
|
|
8m7 |
8m8 |
1.8'' |
310° |
2019 |
Cep |
21h17m33.47s |
+82°31'03.70" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (128x) |
Barely split without any noticeable difference in brightness. |
|
|
|
|
BU163 |
|
AB |
7m3 |
8m9 |
0.9'' |
257° |
2018 |
Equ |
21h18m34.85s |
+11°34'08.20" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (533x) |
Can resolve in 20" and once know where B is, can split with 8", but B is much fainter and is more a brightening in the first diffraction than at star [Several other fainter pairs] |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Very close but clean split momentarily with seeing, both yellow-orange, 3 delta mag, <1" |
|
|
|
★★
|
STF2789 |
|
AB |
7m7 |
7m9 |
6.9'' |
114° |
2019 |
Cyg |
21h19m58.84s |
+52°58'44.10" |
Robert Zebahl
Leipzig (Germany) |
70mm (44x) |
At 22x almost separated. The double star appeared strikingly orange and forms a conspicuous, nearly isosceles triangle with neighbouring stars. At 44x clearly separated, relatively close together with a small difference in brightness. |
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
bei 32x zwei gleichhelle ganz dicht beieinander stehende weiße Lichtpünktchen, ganz knapp getrennt - wunderschön mit dieser Teleskopöffnung |
|
|
|
|
STT437 |
|
AB |
7m2 |
7m4 |
2.4'' |
19° |
2018 |
Cyg |
21h20m50.12s |
+32°27'10.20" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (57x) |
At 57x separated, but close together. Near, slightly brighter star in nice contrast. The double star shows a distinct orange coloration. At 100x small difference in brightness visible. |
|
René Merting
Drachhausen (Germany) |
76mm (95x) |
bei 95x zeigt sich ein enges äußerst knapp getrenntes Sterndoppel - die B-Komponente im Norden ist maximal eine Viertel Größenklasse schwächer |
|
René Merting
Drachhausen (Germany) |
100mm (107x) |
bei 64x eine schöne 8, die beiden etwa gleich hellen Sterne berühren sich noch ganz leicht und scheinen fast getrennt zu sein - bei 107x ist die Trennung dann knapp, aber deutlich |
|
Uwe Pilz
Leipzig (Germany) |
105mm (200x) |
orange und orangegelb, schön auch bei 88x |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
einfach |
|
|
|
|
BU838 |
|
|
7m9 |
10m0 |
1.6'' |
151° |
2007 |
Equ |
21h20m55.78s |
+03°07'05.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (205x) |
A is white, B is very lightly orange, very close >1", ~2 delta mag, nice pair. Physical with a 1280 year period. Burnham discovered with the 15.5-inch Washburn refractor at 1.29" |
|
|
|
|
STT435 |
|
|
8m3 |
8m2 |
0.7'' |
239° |
2018 |
Equ |
21h21m23.70s |
+02°53'14.60" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
nicht als DS gesehen |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Clean split, near equal, light orange stars. |
|
|
|
★
|
STFB11 & TOK9001, 1 Peg |
STFB11 |
AB |
4m2 |
9m3 |
36.3'' |
312° |
2019 |
Peg |
21h22m05.13s |
+19°48'15.70" |
|
|
|
STFB11 |
AC |
4m2 |
12m9 |
64.3'' |
13° |
2017 |
|
|
|
|
|
|
TOK9001 |
AD |
4m2 |
9m6 |
5.3'' |
151° |
1993 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
76mm (29x) |
STFB11 (AB): bei 29x zeigt sich die B Komponente deutlich abgesetzt nordwestlich von A und ist viel schwächer - Komponente A ist gelblich, B eher grau |
|
Uwe Pilz
Leipzig (Germany) |
105mm (88x) |
STFB11 (AB): der helle Stern ist weiß. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
STFB11 (AB): 1 Peg: Easy yellow-orange & wide separated B |
|
|
|
|
STF2799 |
|
AB |
7m4 |
7m4 |
2.1'' |
262° |
2018 |
Peg |
21h28m52.79s |
+11°05'05.20" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (100x) |
At 100x, barely, at 128x clearly split with equally bright components. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (200x) |
beide Komponenten gelb |
|
Mark McCarthy
Fremont (California/USA) |
203mm (533x) |
Very nice pair, only slightly unequal, ~3" |
|
|
|
★★
|
B1008 |
|
AB |
8m9 |
8m1 |
0.1'' |
216° |
2019 |
PsA |
21h30m57.70s |
-36°32'49.70" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Propus (means "forefoot") = Eta Geminorum: So cool! Bright orange star with B very close, ~1.5", just preceding, ~3 delta mag. B is in diffraction but is well separated & has its own airy disk, bluish white. |
|
|
|
★
|
STF2804 |
|
AB |
7m7 |
8m0 |
3.7'' |
1° |
2018 |
Peg |
21h32m58.30s |
+20°42'44.50" |
|
|
Robert Zebahl
Leipzig (Germany) |
70mm (57x) |
Clearly split, pretty close, moderately uneven. The primary components looked slightly orange. Very nice pair. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (88x) |
der südliche Stern ist einen Hauch heller. Gelb und orange. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (533x) |
Nice light orange and light blue, sharp, 1 delta mag 3". pretty. |
|
|
|
|
BU688 |
|
AB |
8m1 |
8m6 |
0.5'' |
198° |
2016 |
Cyg |
21h42m33.41s |
+41°02'51.00" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
länglich, unsicher |
|
|
|
|
HU374 |
|
|
9m4 |
9m4 |
0.3'' |
64° |
2011 |
Peg |
21h43m25.99s |
+23°53'05.40" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
Slightly notched elongation at 667x, strongly notched snowman at 1067x. Wants to split but won't. It's listed as equal magnitude but it's my impression they are not, there's a noticeable magnitude difference, probably half a mag delta. Physical with 130 year period, it is approaching apastron but will not make appreciable change in my time |
|
|
|
|
HO166 |
|
|
8m4 |
8m2 |
0.2'' |
255° |
2018 |
Peg |
21h43m54.25s |
+27°50'48.80" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
Snowman / overlapping disks at 667x & 1067x. Cleaner view at 667x & I can tell which one is A and which is B, and their orientation to other stars. Discovered 1886 at 0.4" it has a 79.29 year period, and I should be able to detect a quarter turn in the next 15 years and it will widen slightly |
|
|
|
★
|
mu Cyg, 78 Cyg, STF2822 |
|
AB |
4m8 |
6m2 |
1.6'' |
322° |
2019 |
Cyg |
21h44m08.57s |
+28°44'33.40" |
|
|
|
|
AD |
4m8 |
6m9 |
197.0'' |
43° |
2019 |
|
|
|
|
|
Uwe Pilz
Leipzig (Germany) |
60mm (198x) |
AB: Aufhellung innerhalb des ersten Rings |
|
Robert Zebahl
Leipzig (Germany) |
70mm (128x) |
AB: At 128x I was able to see this double at least elongated. |
|
Sarah Gebauer
Germany |
150mm (160x) |
AD: bei der Sichtung noch eher unsicher, welche der hellen Sterne die Komponenten AB enthalten, denn diese habe ich nicht getrennt, AD mit einem Abstand von 196'' stehen mit drei weiteren Feldsternen in einer mehr oder minder interessanten Konstellation |
|
Robert Zebahl
Leipzig (Germany) |
200mm (171x) |
AB: Quite well split with noticeable fainter component. |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
AB: getrennt |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
AB: Yellow and light orange pair, ~1", 1 delta mag. Very pretty, subtle colors |
|
|
|
|
HO467 |
|
AB |
8m1 |
10m3 |
2.6'' |
221° |
2010 |
Peg |
21h50m37.14s |
+22°15'31.00" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (205x) |
Fine pair, bright white A and ~2 delta dull yellow B, close ~1" |
|
|
|
|
BU75 |
|
AB |
8m4 |
8m6 |
1.1'' |
26° |
2018 |
Peg |
21h55m31.42s |
+10°52'49.50" |
|
|
|
|
AB-C |
7m7 |
12m5 |
35.3'' |
211° |
2012 |
|
|
|
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (533x) |
AB: With patience for poor conditions and some critical focus I get a good clean split, slightly unequal |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
AB-C: Yellow white and faint blue, well split. Did not see AB 1.1" |
|
|
|
|
A1226 |
|
|
9m3 |
9m9 |
0.1'' |
5° |
2011 |
Peg |
21h57m17.70s |
+32°40'32.40" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
Olive shape at 667x & 1067x, best I can see. It's a physical pair but it won't make an appreciable change in its 120.4 year period in my time |
|
|
|
|
STF2873 |
|
AB |
7m0 |
7m5 |
13.8'' |
66° |
2017 |
Cep |
21h58m13.53s |
+82°52'10.80" |
|
|
Robert Zebahl
Leipzig (Germany) |
55mm (25x) |
Easy to split with visible difference in brightness. Stands out immediately. |
|
René Merting
Drachhausen (Germany) |
100mm (20x) |
bei 32x ein gut getrenntes Pärchen, B ist eine halbe Magnitude schwächer und strahlt ein wenig kühler als A - eine richtig schöne Vergrößerung ist 20x, dann stehen beide Sterne sehr dicht und zeigen schön ihren leichten Farbkontrast |
|
|
|
|
STF2863, xi Cep, 17 Cep |
|
AB |
4m5 |
6m4 |
8.2'' |
274° |
2019 |
Cep |
22h03m47.45s |
+64°37'40.70" |
|
|
Robert Zebahl
Leipzig (Germany) |
55mm (27x) |
At 27x well separable, but quite close together with a clear difference in brightness. At 71x very nice view. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
Alkurhah. Pretty very light yellow bright A star, and ~2 delta mag, very light orange B, wide. Physical pair with a 3800 year period |
|
|
|
★
|
COU537 |
|
|
8m6 |
8m8 |
0.3'' |
320° |
2009 |
Peg |
22h07m40.20s |
+26°21'35.80" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
Suspected with 667x. Exceedingly difficult, it's an elongated rod pointed a particular way from the reference star in the field. At moments of best seeing I detect two brightened ends of that rod, not quite split, but can tell is double. PA is now to the north and this closely matches my sketch, however my sense of which is A and B is reversed. 47.3 year period, at apastron now, it will not be detectable after 2030 |
|
|
|
|
STF2872 |
|
A-BC |
7m1 |
8m0 |
22.8'' |
315° |
2019 |
Cep |
22h08m36.04s |
+59°17'22.20" |
|
|
|
|
AD |
7m1 |
11m8 |
117.3'' |
153° |
2014 |
|
|
|
|
|
|
|
BC |
8m0 |
8m0 |
0.8'' |
297° |
2018 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
100mm (20x) |
A-BC: bei 32x einfach zu trennen, die B-Komponente im NW ist nur knapp schwächer - dezenter Farbunterschied, A leuchtet weiß-bläulich und BC weiß-gelblich - zurück auf 20x zeigt sich der Doppelstern weiter gut getrennt |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
BC: BC in ruhigen Momenten trennbar |
|
|
|
★
|
COU136 |
|
|
9m2 |
7m6 |
0.4'' |
19° |
2015 |
Peg |
22h10m02.22s |
+23°07'33.00" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
Awesome hairline at 533x, nice clean split at 1067x. The stars are split the diffraction patters merge at the boarders, perfect images. Appears more near equal than SkyTools data suggests |
|
|
|
|
STF2881 |
|
|
7m7 |
8m2 |
1.3'' |
76° |
2017 |
Peg |
22h14m34.67s |
+29°34'20.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (205x) |
Close white stars, ~1 delta mag, >1", nice |
|
|
|
|
BU1216 |
|
|
8m6 |
9m2 |
0.9'' |
276° |
2017 |
Peg |
22h20m12.75s |
+29°31'07.80" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
White stars, nicely split, noticeable delta mag. Physical with 503 year period. Discovered in 1890 with the 16-inch of the Warner Observatory at 0.6" |
|
|
|
|
33 Peg |
STF2900 |
AB |
6m3 |
9m2 |
1.0'' |
1° |
2017 |
Peg |
22h23m39.56s |
+20°50'54.00" |
|
|
|
STF2900 |
AC |
6m3 |
8m5 |
92.7'' |
306° |
2015 |
|
|
|
|
|
|
COU139 |
CD |
8m5 |
10m7 |
0.4'' |
88° |
2011 |
|
|
|
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
AB: 33 Peg. A is bright yellow and B is orange, close to 1" separation, very large delta mag. AB is physical with at 407 year period but will widen by 1" over the next 27 years |
|
Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
CD: appears as a notched elongation at best moments all powers, though the clearest view is at 667x, noticeable magnitude difference. |
|
|
|
|
SHJ345, 53 Aqr |
|
AB |
6m3 |
6m4 |
1.2'' |
89° |
2019 |
Aqr |
22h26m34.30s |
-16°44'31.90" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (240x) |
länglich, horizontnah |
|
|
|
|
KR60, DO Cep, Kruger 60 |
|
AB |
9m9 |
11m4 |
1.5'' |
266° |
2016 |
Cep |
22h27m59.20s |
+57°41'43.80" |
|
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
Unsicher – nur des Positionswinkel wurde zwar blickweise erkannt, aber die Komponenten verwechselt. |
|
Robert Zebahl
Leipzig (Germany) |
152mm (150x) |
Observed at magnifications between 129x and 300x. The seeing and transparency (Bortle 6-) were only average. The rather faint B component seemed to appear in few moments. |
|
Robert Zebahl
Leipzig (Germany) |
152mm (150x) |
The seeing was more average (3/5). Observation under suburban conditions (Bortle 6, SQM-L 19.1). Initially observed at 270x, later at 300x. The extremely faint companion was always visible at the same position if the air was steady enough. Difficult because of the low magnitude! |
|
Uwe Pilz
Leipzig (Germany) |
320mm (387x) |
äußerst schwierig, nur blickweise sichtbar |
|
Mark McCarthy
Fremont (California/USA) |
508mm (205x) |
DO Cep. Easy pair, reddish B, lots of stars around including a near equal double to the WNW separated about 5". KR 60 will make a quarter turn in its orbit by 2035 |
|
|
|
|
BU701 |
|
AB |
7m3 |
9m6 |
1.1'' |
179° |
2017 |
Peg |
22h28m07.24s |
+12°14'55.50" |
|
|
|
|
AC |
7m3 |
12m0 |
126.7'' |
133° |
2015 |
|
|
|
|
|
Mark McCarthy
Fremont (California/USA) |
152mm (175x) |
AB: Extremely fine, B appears with seeing on A's diffraction ring, ~1", a very fine point. Burnham discovered with 18.5-inch, at 1.24", and it has narrowed since then |
|
Mark McCarthy
Fremont (California/USA) |
317mm (513x) |
AB: Orange star with a slightly mis-shaped disk |
|
Mark McCarthy
Fremont (California/USA) |
317mm (513x) |
AC: very wide separated bluish star 2-3 delta mag. |
|
|
|
★★
|
STF2909, zet 2 Aqr |
|
AB |
4m3 |
4m5 |
2.3'' |
160° |
2019 |
Aqr |
22h28m49.81s |
-00°01'12.20" |
|
|
Christopher Hay
Seeheim (Germany) |
180mm (120x) |
Neatly split, whereby the first difraction rings of each component touch the Airy discs of the other. Component A in the north seems marginally more yellowish than component B in the south.
Zeta Aqr is called Sadaltager, meaning „Merchant’s Luck“. It is framed nicely by Pi, Gamma and Eta Aquarii, with which it forms a striking triangular asterism known as „The Tent“. Moreover, Zeta Aqr is a true physical double. This constellation and the beautiful telescopic appearance warrant a two-star rating. |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (240x) |
einfach |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
Very bright white, equal magnitude, fairly close ~2". |
|
|
|
|
HU981 |
|
|
7m6 |
7m9 |
0.3'' |
215° |
2008 |
Cep |
22h30m32.63s |
+61°37'25.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
203mm (667x) |
Notched elongation with 33x & 667x. Slight mag difference. Need more aperture (934 year period, 0.29" now!) |
|
|
|
★
|
8 Lac |
CHR112 |
Aa-Ab |
5m7 |
|
0.0'' |
131° |
2018 |
Lac |
22h35m52.28s |
+39°38'03.60" |
|
|
|
STF2922 |
AB |
5m7 |
6m3 |
22.3'' |
186° |
2018 |
|
|
|
|
|
|
A1469 |
AC |
5m7 |
10m4 |
48.8'' |
168° |
2016 |
|
|
|
|
|
|
A1469 |
CD |
10m4 |
9m1 |
42.4'' |
116° |
2016 |
|
|
|
|
|
|
A1469 |
AD |
5m7 |
9m1 |
81.6'' |
145° |
2017 |
|
|
|
|
|
|
A1469 |
AE |
5m7 |
7m2 |
335.2'' |
239° |
2016 |
|
|
|
|
|
|
DAL28 |
AG |
5m7 |
14m1 |
77.6'' |
193° |
2015 |
|
|
|
|
|
|
COM8 |
BF |
6m3 |
11m0 |
127.6'' |
175° |
2012 |
|
|
|
|
|
|
A1469 |
DI |
9m1 |
13m3 |
10.0'' |
227° |
2015 |
|
|
|
|
|
|
DAL28 |
GJ |
14m1 |
13m0 |
6.5'' |
78° |
2016 |
|
|
|
|
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
AB: bei 32x sind beide Komponenten gut getrennt sichtbar - B im Süden ist eine halbe Größenklasse schwächer
BC: bei 32x schimmert südöstlich von der Komponente B ein ganz schwacher Lichtpunkt, die Komponente C, durch - Komponenten BC mit gleichem Abstand wie AB
CD: interessant ist das Mehrfachsystem allemal, denn in doppelter Entfernung weiter südöstlich steht eine vierte Komponente D (eigene Bezeichnung: A1469, D mit Helligkeit 9.08 mag), so dass 4 Sterne problemlos mit dieser Öffnung zu erfassen sind |
|
|
|
★
|
BU1092 |
|
AB |
8m3 |
8m3 |
0.4'' |
227° |
2018 |
Cep |
22h36m08.65s |
+72°52'51.10" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
Notched! Near equal. With seeing. |
|
|
|
|
HO295 |
|
AB |
7m5 |
8m0 |
0.3'' |
336° |
2016 |
Lac |
22h38m47.47s |
+44°18'49.90" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (1067x) |
Very subtly notched elongation, can tell B from A. Elongation suspected at 667x. One field star another just out of view. Short 30 year period, it will tighten rapidly and return to 0.3" in 2034 |
|
|
|
|
STF2934 |
|
|
8m6 |
9m6 |
1.4'' |
57° |
2016 |
Peg |
22h41m51.68s |
+21°25'53.00" |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
schwieriger wegen schwacher Sterne |
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
1.5 delta mag, well split, ~1.5", bluish white stars |
|
|
|
|
BU711 |
|
AB |
10m2 |
11m4 |
2.5'' |
348° |
2018 |
Peg |
22h45m27.86s |
+11°11'30.90" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (205x) |
Very fine, ~1.5 delta mag, >1" separation, nice |
|
|
|
|
STF2944 |
|
AB |
7m3 |
7m7 |
1.8'' |
307° |
2019 |
Aqr |
22h47m50.05s |
-04°13'43.60" |
|
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
Pretty close equal white pair, ~2.0", split. |
|
|
|
★
|
HU985 |
|
|
9m6 |
9m9 |
0.7'' |
134° |
2016 |
Peg |
22h47m54.00s |
+12°58'36.20" |
|
|
Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
Wow I got it! Light orange star and a very faint star just outside first diffraction, very subtle and tough |
|
|
|
|
STF2950 |
|
AB |
6m0 |
7m1 |
1.1'' |
274° |
2018 |
Cep |
22h51m22.51s |
+61°41'47.90" |
|
|
Sarah Gebauer
Germany |
100mm (136x) |
bei 136x ist neben der Hauptkomponente etwas ganz Schwaches zu sehen, aber eher unsicher und nicht sauber getrennt, höhere Vergrößerung ist an diesem Abend nicht möglich |
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Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Nice pair indeed. Bright yellow-white A and 2 delta mag B, clean split, ~2". May be third fainter much wider split (AC, 39.2" 11.05) |
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★★
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HO482 |
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AB |
7m3 |
8m3 |
0.6'' |
13° |
2017 |
Peg |
22h51m26.66s |
+26°23'27.90" |
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Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
A star does not seem round, but seeing is poor. Marginal |
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Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
!! Excellent split, white stars, slight magnitude difference, really good. Physical with 383 year period |
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BU382 |
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AB |
6m0 |
7m8 |
0.7'' |
244° |
2016 |
Lac |
22h53m40.16s |
+44°44'57.10" |
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Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
schwierig, Helligkeitsunterschied stark |
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HU987 |
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9m2 |
9m7 |
1.2'' |
75° |
2016 |
Peg |
22h55m43.52s |
+15°46'45.50" |
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Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
Well separated one delta mag pair, nice |
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STF2957 |
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AB |
9m2 |
10m9 |
4.6'' |
224° |
2016 |
Peg |
22h56m23.64s |
+17°27'08.60" |
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Mark McCarthy
Fremont (California/USA) |
508mm (205x) |
Dull yellow stars, ~2 delta mag, wide |
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STT483, 52 Peg |
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6m1 |
7m3 |
0.5'' |
20° |
2016 |
Peg |
22h59m11.82s |
+11°43'43.80" |
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Mark McCarthy
Fremont (California/USA) |
152mm (285x) |
52 Peg. Snowman/notched but not split. I'll need the 20-inch for this one |
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Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
Elongation, very subtle notch. Physical with 249 year period |
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★
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BU180 |
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AB |
8m0 |
9m2 |
0.5'' |
134° |
2016 |
Cep |
23h07m09.99s |
+60°49'57.10" |
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Mark McCarthy
Fremont (California/USA) |
203mm (533x) |
Snowman through 533x. Just too much of a delta mag. Burnham discovered with his 6-inch at 0.57"! Physical, 537 year period |
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Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
Exceedingly fine split at best moments, hairline, 1 delta mag. |
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STT489, pi Cep |
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AB |
4m6 |
6m8 |
1.1'' |
4° |
2016 |
Cep |
23h07m53.84s |
+75°23'15.30" |
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Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
nicht als DS gesehen |
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BU385 |
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AB |
7m4 |
8m2 |
0.7'' |
84° |
2018 |
Peg |
23h10m17.15s |
+32°29'13.40" |
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Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
in ruhigen Momenten getrennt |
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STF2987 |
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7m4 |
10m4 |
3.4'' |
154° |
2016 |
And |
23h10m21.28s |
+49°01'06.00" |
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Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
Nice white and blue-white pair, ~3 delta mag, wide ~4" |
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STF3001, omi Cep |
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AB |
5m0 |
7m3 |
3.4'' |
224° |
2018 |
Cep |
23h18m37.41s |
+68°06'41.10" |
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Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
A is bright yellow, B dull yellow, ~3 delta mag and ~3 separation, a striking pair. Physical, 1505 year period |
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STF3007 |
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AB |
6m7 |
9m8 |
5.5'' |
92° |
2017 |
Peg |
23h22m48.67s |
+20°33'32.20" |
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AC |
6m7 |
10m9 |
103.8'' |
305° |
2017 |
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René Merting
Drachhausen (Germany) |
100mm (64x) |
AB: bei 64x ist Komponente B ganz schwach östlich von A knapp getrennt zu erkennen - ein riesiger Helligkeitsunterschied von 3.5 Größenklassen |
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Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
AB: Yellow-white A and a bit orange B, ~6" and three delta mag, nice pair [Ba,Bb is TOK 704, 8.4 and 0.8", should have been noticeable! try again!] |
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BU1266 & STF3018 & LV25 |
BU1266 |
AB |
8m3 |
8m1 |
0.1'' |
261° |
2007 |
Peg |
23h30m26.29s |
+30°49'54.60" |
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STF3018 |
AB-C |
7m4 |
9m8 |
18.8'' |
202° |
2015 |
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LV25 |
AB-D |
7m4 |
13m8 |
39.0'' |
355° |
2015 |
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René Merting
Drachhausen (Germany) |
76mm (29x) |
STF3018 (AB-C): bei 29x ein sehr ungleiches Paar - C zeigt sich südwestlich von AB mit ordentlich Abstand und wirkt sehr schwach, Helligkeitsunterschied bestimmt 3 Größenklassen (2.32 lt. Stelle Doppie) - dadurch wirkt C farblos ggü. der weiß strahlenden AB-Komponente |
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Mark McCarthy
Fremont (California/USA) |
508mm (533x) |
BU1266 (AB): Very subtle elongation, seen as merely a bump on one side. Very tough. Light orange stars. My estimated PA is 90-degrees off. 48.4 year period, now nearing periastron, it will get a little easier, and make a quarter turn by 2037 |
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★
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72 Peg, BU720 |
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5m7 |
6m1 |
0.6'' |
107° |
2018 |
Peg |
23h33m57.19s |
+31°19'31.00" |
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Uwe Pilz
Leipzig (Germany) |
120mm (250x) |
gelb und orange |
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Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
als 8 zu sehen |
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Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
72 Peg. Small, hard, faint point very tight to A, but split. Stays with seeing. |
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STT500 |
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AB |
6m1 |
7m4 |
0.5'' |
21° |
2018 |
And |
23h37m32.03s |
+44°25'44.50" |
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Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Disk seems not round, but unsure |
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STT507 |
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AB |
6m8 |
7m8 |
0.7'' |
323° |
2018 |
Cas |
23h48m39.03s |
+64°52'35.30" |
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Mark McCarthy
Fremont (California/USA) |
203mm (333x) |
Snowman at 205x, hairline split with 333x, A is a soft white and B is light blue, ~1 delta mag. Physical with 565 year period |
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Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
eindeutig zu trennen, 3er System |
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STT510 |
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AB |
7m9 |
8m4 |
0.6'' |
120° |
2018 |
And |
23h51m33.03s |
+42°04'57.70" |
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Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
3er System, gerade getrennt zu sehen |
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★
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STF3050 |
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AB |
6m5 |
6m7 |
2.5'' |
343° |
2019 |
And |
23h59m29.33s |
+33°43'26.90" |
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Robert Zebahl
Leipzig (Germany) |
55mm (83x) |
At 83x seen as '8'. From 100x to 166x seen as '8', temporarily visible with space between. |
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Robert Zebahl
Leipzig (Germany) |
70mm (100x) |
Wonderful double star. Easy to split with slight difference in brightness. |
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René Merting
Drachhausen (Germany) |
76mm (95x) |
bei 57x deutet sich an, dass es sich um einen Doppelstern handeln könnte - bei 95x zeigt sich dann ein extrem knapp getrenntes Pärchen - beide Sterne sind gleich hell |
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Sarah Gebauer
Germany |
100mm (136x) |
ui, schön! Ein sehr enges Pärchen, bei 136x ganz knapp getrennt, zwei winzig kleine, gleich helle Äuglein nebeneinander |
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Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
einfaches Paar, gleich hell |
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Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
Nice near equal yellow-white, ~3" |
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