|
m1 |
m2 |
ρ |
θ |
Year |
|
Coordinates (J2000.0) |
|
★★★
|
STTA254, WZ Cas |
|
AB |
7m.4 |
8m.3 |
57.8" |
89° |
2019 |
Cas |
00h01m15.85s / +60°21'19.00" |
|
|
|
|
AC |
7m.4 |
9m.6 |
155.4" |
324° |
2015 |
|
|
|
|
|
|
AD |
7m.4 |
10m.3 |
181.4" |
118° |
2016 |
|
|
Christopher Hay
Seeheim (Germany) |
6x24 |
AB: Clearly split. A definitely brighter than B. Under a NELM 5m5 sky both components appear weak in these mini-binoculars and no colour impression arises.;
WZ Cas is the variable designation of component A of STTA254. This semiregular carbon star has a mean brightness range of 6m8 to 7m7, and can reach extreme values of 6m3 at one end and 8m8 at the other. Perhaps it was too deep in a minimum at the time of observation to show colour with 1 inch of aperture? 15x45 binoculars revealed colour in this night, see observation below. |
|
Christopher Hay
Seeheim (Germany) |
15x45 |
AB: Wide split. A orange-red, B no particular colour. NELM 5m5, same night as 6x24 observation above. |
|
Robert Zebahl
Leipzig (Germany) |
16x70 |
AB: 2020-08-19: Intense orange & bluish. Very striking. |
|
René Merting
Drachhausen (Germany) |
16x70 |
AB: ein schöner Fernglas-Doppelstern - Komponente A im Westen präsentiert sich dunkelgelb (noch nicht orange), B im Osten ist eher weißlich |
|
René Merting
Drachhausen (Germany) |
18x70 |
AB: ein sehr auffälliger Doppelstern mit einem schönen Farbkontrast - A strahlt gelb, das kurz davor steht, ins Orange über zu gleiten - B wirkt im Kontrast aquamarin, so dezent wie eine typische PN-Farbe |
|
Robert Zebahl
Leipzig (Germany) |
80mm (33x) |
AB: Nice double star. Brighter component appeared orange, the fainter more bluish. |
|
René Merting
Drachhausen (Germany) |
100mm (20x) |
AB: 20x reicht zwar schon für eine klare Trennung, aber Komponente B im Osten ist nur dumpf grau-blau und noch zu schwach für den schönen Farbkontrast, der sich bei 32x offenbart - Komponente A strahlt dann in einem satten Bernsteingelb, B im Osten gibt sich unterkühlt bläulich - Helligkeitsunterschied 1 bis 1.5 Größenklassen, schwierig abschätzbar wegen der Farben |
|
Robert Zebahl
Leipzig (Germany) |
102mm (28x) |
AB: Splendid view. Primary component clearly orange, secondary blue. |
|
Jörg S. Schlimmer
Germany |
127mm (136x) |
Sehr schöner Farbkontrast |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
AB: WZ Cas: Pretty, deep orange A and very wide half delta mag B, white. |
|
René Merting
Drachhausen (Germany) |
320mm (45x) |
AB: bei 45x ein weit getrenntes Pärchen mit wunderschönen Farbkontrast, Komponente A im Westen ist grell-orange und die gut 1.5 Magnituden schwächere Komponente B ist aquamarin-grau |
|
|
Robert Zebahl
Leipzig (Germany) |
102mm |
|
|
|
|
★★
|
1 Ari, STF174 |
|
|
6m.3 |
7m.2 |
2.9" |
164° |
2018 |
Ari |
01h50m08.60s / +22°16'29.50" |
Robert Zebahl
Leipzig (Germany) |
63mm (46x) |
Clearly split, but tight with noticeable difference in brightness. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (80x) |
At 67x pretty tight pair, but separated with a clear difference in brightness. The primary component appeared in a hint of orange. At 80x easy to separate. |
|
Christopher Hay
Seeheim (Germany) |
76mm (83x) |
1 Arietis is clearly orange (not split) in 12x42 finder. In 3-inch at 83x fine split, primary fiery orange. At 100x split becomes more obvious, at 125x easy, but at expense of loss of colour. |
|
Stefan Loibl
Rosenheim (Germany) |
102mm (102x) |
slight color difference, A orange, B blueish |
|
Sarah Gebauer
Germany |
150mm (27x) |
im Dezember 2019 nicht getrennt |
|
Robert Zebahl
Leipzig (Germany) |
200mm (100x) |
Conditions in the target region: SQM-L 20.8
Nice double star with big difference in brightness. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (533x) |
1 Ari. ! Very beautiful yellow-orange A and robin's egg blue B, 3", one delta mag. probably one of the best color pairs |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
Pretty orange and blue pair, ~2 delta mag, ~2". |
|
Karsten Kopp
Köln (Germany) |
600mm (180x) |
Gut zu trennender Doppelstern mit schon auffälligem Helligkeitsunterschied. Der hellere leuchtet gelblich und der schwächere geht ins bläuliche. Schöner Doppelstern. |
|
|
|
★★★
|
gamma And, 57 And, Alamak |
STF205 |
A-BC |
2m.3 |
5m.0 |
9.5" |
63° |
2021 |
And |
02h03m53.92s / +42°19'47.50" |
|
|
|
STT38 |
BC |
5m.3 |
6m.5 |
0.3" |
120° |
2021 |
|
|
|
|
|
BAR22 |
AD |
2m.3 |
15m.0 |
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! |
|
|
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 |
|
Werner E. Celnik
Rheinberg (Germany) |
150mm |
A-BC |
|
|
|
★★★
|
STF93, alpha UMi, 1 UMi, Polaris |
|
AB |
2m.0 |
9m.1 |
18.4" |
236° |
2016 |
UMi |
02h31m49.09s / +89°15'50.70" |
|
|
|
|
AC |
2m.0 |
13m.8 |
39.0" |
103° |
2016 |
|
|
|
|
|
|
AD |
2m.0 |
14m.3 |
83.2" |
194° |
2016 |
|
|
Christopher Hay
Seeheim (Germany) |
71mm (32x) |
B well separated, a fine blue pinprick next to luminous yellow A.
Alpha UMi, Polaris, is a physical double at a distance to us of 433 light years. |
|
Christopher Hay
Seeheim (Germany) |
76mm (40x) |
B well set off from A. Glare from A is an issue, consciously trying to ignore A helps. Very slight yellowish tone of A. Seeing the difficulty makes it clear why attempts in other nights to split the pair with 25x80 binoculars failed. |
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
AB: bei 32x knallt die Hauptkomponente A schön hellgelb rein, Komponente B ist als feiner zarter Lichtpunkt knapp daneben erkennbar - Größenklassenunterschied nicht abschätzbar, auf jeden Fall riesig |
|
Christopher Hay
Seeheim (Germany) |
180mm (113x) |
B widely separated from A. A has definite yellowish hue. B luminous aquamarine blue, very attractive. |
|
René Merting
Drachhausen (Germany) |
320mm (45x) |
AB: bei 45x ist B sehr knapp getrennt von A erkennbar - Komponente A strahl auf den ersten Blick weiß, bei genauerem Hinsehen mischt sich ein zartes Gelb unter |
|
|
|
★★
|
AG304, 15 Tri |
|
|
5m.6 |
6m.8 |
142.4" |
16° |
2013 |
Tri |
02h35m46.82s / +34°41'15.20" |
Christopher Hay
Seeheim (Germany) |
7x50 |
Well split. Main star yellow-orange, secondary an ice-blue pinprick. With overall brightness of 5m1 just visible to naked eye under my suburban sky. Interesting star field with a line of 5 stars pointing S-SW away from 15 Tri and a further striking star chain to the west. Placing Gamma-Delta-7 Tri within 7.5° FOV makes a very attractive overall field. Mira variable R Tri just ½ degree to the S-SE was around maximum at time of observation and presented a much paler orange than 15 Tri A. Charming colour contrast ensemble with the two components of the double plus the variable. |
|
René Merting
Drachhausen (Germany) |
18x70 |
ein extrem komfortabel getrenntes Sternpaar - Komponente A im Süden strahlt weißgelb, B ist 1.5 Größenklassen schwächer und wirkt kupfergrau - interessant: parallel zu den beiden Sternen stehen westlich zwei deutlich schwächere Sterne in gleichem Abstand und Positionswinkel wie die Komponenten von 15 Tri - alle 4 Sterne bilden ein Parallelogramm |
|
Christopher Hay
Seeheim (Germany) |
80mm (30x) |
A beautiful, wide pair. Main star orangish yellow, secondary ice-blue. Attractive star field in 2.7° FOV: several similarly-separated pairs to the north and east, and two striking star chains to the south and west. |
|
Sarah Gebauer
Germany |
100mm (21x) |
ein wirklich schönes, farbiges Pärchen, das schon bei geringster Vergrößerung deutlich getrennt und in einem Eisblau und leichtem Orange strahlt, zudem bildet es mit der markanten Sternkette östlich davon, die im Refraktor mit Amiciprisma ein auf dem Kopf stehendes T bildet, ein tolles Gesamtbild |
|
|
|
★
|
STF434 |
|
AB |
7m.8 |
8m.3 |
33.7" |
83° |
2019 |
Per |
03h43m58.92s / +38°22'25.60" |
|
|
|
|
AC |
7m.8 |
13m.6 |
91.9" |
350° |
2015 |
|
|
Robert Zebahl
Leipzig (Germany) |
16x70 |
AB: 2020-11-07: Beautiful sight! Nice separation and color contrast: vivid orange & subtle blue. |
|
Robert Zebahl
Leipzig (Germany) |
102mm (28x) |
AB: 2020-11-08: Easy to separate, beautiful sight! Light orange & light blue. |
|
|
|
★★★
|
STFA10, theta 2 Tau, 78 Tau |
|
AB |
3m.4 |
3m.9 |
336.9" |
347° |
2019 |
Tau |
04h28m39.74s / +15°52'15.20" |
Christopher Hay
Seeheim (Germany) |
2x54 |
Well separated, luminous orange and ice blue. Gorgeous with entire Hyades and Pleiades in 25° field of view.
Theta Tau is a physical double at a distance to us of 150 light years. |
|
Christopher Hay
Seeheim (Germany) |
7x45 |
Theta Tauri. Luminous orange and blue. Wide apart but very much feeling to belong together, despite the many stars of the Hyades all around.
A physical pair. The data suggest separation with naked eye is possible, something to try in good health under a steady sky. At all events with naked eye Theta Tauri is at the centre of the southern stroke of the Hyades' distinctive "V" shape. In the binoculars, by ignoring Aldebaran, which is not a cluster member but a foreground star, it suddenly becomes apparent that Theta Tauri is in fact at the centre of the Hyades in our sky and is its lucida. This impression is supported very nicely by 7x and 8.6° FOV. Definitely one of the finest doubles for this class of binocular. |
|
|
|
★
|
delta Ori, Mintaka |
BU558 |
AB |
2m.4 |
14m.2 |
33.4" |
229° |
2016 |
Ori |
05h32m00.40s / -00°17'56.70" |
|
|
|
STFA14 |
AC |
2m.4 |
6m.8 |
56.2" |
4° |
2017 |
|
|
René Merting
Drachhausen (Germany) |
10x50 |
AC: Komponente C zeigt sich gut abgesetzt im NW von A - Helligkeitsunterschied enorm, mindestens 3 Größenklassen |
|
René Merting
Drachhausen (Germany) |
18x70 |
AC: total leicht - Komponente C thront gut getrennt nördlich über A (Mintaka) und ist gut 2 bis 3 Größenklassen schwächer (sogar 4.42 mag laut Stelle Doppie) und trotzdem noch ein mittelheller Stern - A ist gleißend weiß, C weißgrau |
|
Christopher Hay
Seeheim (Germany) |
76mm (25x) |
AC: C set off well from A. A pure white, C steel blue. Although in the middle of Orion the pair dominates the 3.1° FOV. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (22x) |
AC: blau und violett |
|
Uwe Pilz
Leipzig (Germany) |
105mm (200x) |
AC: sehr weit in reichem Sternfeld |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
AC: reinweiß-violett |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
AC: Bright, 2 delta mag, very wide. |
|
|
|
★★
|
145 CMa, Winter Albireo |
HJ3945, Winter Albireo |
AB |
5m.0 |
5m.8 |
26.5" |
50° |
2020 |
CMa |
07h16m36.84s / -23°18'56.10" |
|
|
|
SHY508 |
BC |
5m.8 |
6m.8 |
999.9" |
165° |
1999 |
|
|
Christopher Hay
Seeheim (Germany) |
7x45 |
AB: On tripod. Very tight but definitely split. A tends towards orange. Proximity to A prevents determination of colour of B. |
|
René Merting
Drachhausen (Germany) |
8x30 |
AB: Winter-Albireo - ein eng stehendes Pärchen, ganz knapp getrennt - Komponente A im SW knallig orange, bei B ist schwer eine Farbnuance erkennbar, eher weißlich und deutlich schwächer als A |
|
René Merting
Drachhausen (Germany) |
10x50 |
AB: ein knapp getrenntes Paar (nicht besser als im 8x30) - Komponente A leicht gelblich, B ist kühler, weißlich |
|
Christopher Hay
Seeheim (Germany) |
10x56 |
BC: On tripod. B is set off well from visually distracting A (which in turn is the primary of HJ3945, the Winter Albireo). C seen clearly and well framed in 6.3° field of view with Tau CMa at centre of field.
Shaya 508 BC is a physical double at a distance to us of 303 light years. Reported in E.J. Shaya, R. Olling, 2011: Very Wide Binaries and Other Comoving Stellar Companions: A Bayesian Analysis of the Hipparcos Catalogue. The C component is more than 3° to the south of the B component. Coordinates of C component (= HD 35578) are RA 07h20m32.5s, DEC -26°42'01". |
|
Christopher Hay
Seeheim (Germany) |
10x56 |
AB: On tripod. Immediately striking as well-split pair. A flashing orange. Glare and scintillation of A prevent any definite colour impression of B. |
|
René Merting
Drachhausen (Germany) |
18x70 |
AB: ein gut getrenntes Pärchen - Komponente A im Südwesten ist apfelsinenorange, B wirkt anfangs eisblau, bei längerer Betrachtung weißgrau |
|
Christopher Hay
Seeheim (Germany) |
42mm (12x) |
AB: Clean split. Orange and blue. |
|
René Merting
Drachhausen (Germany) |
100mm (20x) |
AB: bei 32x leuchtet Komponente A goldgelb, B im NO wirkt weiß ohne den erwarteten Farbstich, auch nicht bei 107x und auch nicht, wenn ich die Sterne leicht unscharf stelle - trotzdem sehenswert - auch bei 20x zeigen sich beide Sterne ordentlich voneinander getrennt, A strahlt jetzt noch tiefgelber, fast orange |
|
Uwe Pilz
Leipzig (Germany) |
105mm (37x) |
AB: sofort auffallend, blau-orange |
|
Robert Zebahl
Leipzig (Germany) |
120mm (23x) |
AB: Evident, easy to split at large angular distance. Brighter component appeared very orange, fainter one bluish. |
|
|
|
★★
|
STF1424, gamma Leo, 41 Leo, Algieba |
|
AB |
2m.4 |
3m.6 |
4.7" |
127° |
2020 |
Leo |
10h19m58.35s / +19°50'29.40" |
|
|
Christopher Hay
Seeheim (Germany) |
20x60 |
Handheld in reclining chair, binoculars with internal stabilisation. 14 May 2022 (4.7" angular distance according to database): Pear-shaped. Strong orange-lemon yellow, a fruity affair. PA estimated 140° without prior knowledge, a good enough match, considering the low magnification, to the database figure of 127° ascertained post-observation. |
|
Christopher Hay
Seeheim (Germany) |
44x100 |
21 May 2022 (4.7" angular distance according to database): Hairfine split, slightly difficult due to bloated stars in these achromatic (not apochromatic) binoculars. Both components orange, with secondary going into yellow. Thin cloud moving through tightens up the star images and makes the split much clearer. Clearest shortly before clouds become so dense as to swallow the pair. |
|
Christopher Hay
Seeheim (Germany) |
36mm (50x) |
21 May 2022 (4.7" angular distance according to database): At 40x deeply notched, at 50x tenuously split, at 66x cleanly and clearly split. |
|
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 |
|
|
|
★
|
STF1487, 54 Leo |
|
|
4m.5 |
6m.3 |
6.6" |
112° |
2020 |
Leo |
10h55m36.80s / +24°44'59.00" |
Robert Zebahl
Leipzig (Germany) |
55mm (27x) |
At 27x split, but very tight with noticeable difference in brightness. At 71x easy to separate. No visible color difference. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (67x) |
2021-04-13: At 67x beautifully separated with clearly visible difference in brightness. Very attractive is the subtle color difference: light yellow & light blue. At 133x the color of the companion is a bit more pale: grey-blue. The primary component still shines in a beautiful light yellow. |
|
Winfried Kräling
Marburg (Germany) |
127mm (250x) |
13.03.2017: Hauptkomponente gelblich, Begleiter bläulich, deutlicher Helligkeitsunterschied. Ebenfalls bei V=60x getrennt. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
Bright white pair (4.5, 6.3) wide sep (6") |
|
Mark McCarthy
Fremont (California/USA) |
508mm (333x) |
54 Leo. Brilliant pair, light white-yellow stars, ~2 delta mag, wide |
|
|
|
|
STF2264, 95 Her |
|
|
4m.8 |
5m.2 |
6.4" |
255° |
2020 |
Her |
18h01m30.41s / +21°35'44.80" |
René Merting
Drachhausen (Germany) |
100mm (32x) |
bei 32x mein erster Eindruck ist, dass zwei annähernd gleichhelle sehr eng stehende Sterne mich wie zwei Augen anschauen, das unmittelbare Sternumfeld passt schön und verleiht dem Doppel eine hervorgehobene Stellung - Komponente B im Westen ist nur minimal schwächer als A - in guten Momenten ist die Trennung sehr eindeutig erkennbar |
|
René Merting
Drachhausen (Germany) |
100mm (64x) |
bei 64x zwei helle, knapp getrennte Sterne - die schwächere westliche Komponente zeigt ein schönes, helles Gelb und wirkt dadurch leicht schwächer - zurück auf 32x ist eine 8 mit deutlicher Einschnürung erkennbar - der Farbunterschied ist ebenfalls deutlich |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
|
|
Karsten Kopp
Köln (Germany) |
140mm (94x) |
Konnte erst mit 94-facher Vergrößerung gut getrennt wahrgenommen werden. |
|
Sarah Gebauer
Germany |
150mm (54x) |
zwei enge, hübsche Glanzpünktchen, die ich zuvor ziemlich lange in dem hellen Sterntrapez gesucht habe |
|
Robert Zebahl
Leipzig (Germany) |
152mm (49x) |
2020-06-23: At 49x eye catching double star, relatively tight with rather small difference in brightness. Beautiful color impression, which was even better visible at 69x: yellowish and yellowish-orange. |
|
Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
95 Her. Orange and blue, wide, bright. |
|
Karsten Kopp
Köln (Germany) |
600mm (135x) |
Sehr einfaches und auffälliges Objekt. Kein Helligkeitsunterschied erkennbar. |
|
|
Berthold Fuchs
Wiesbaden (Germany) |
130mm |
close DS |
|
Frederik Wanink
Itterbeck (Germany) |
254mm |
|
|
|
|
★★
|
STT525 & SHJ282 |
STT525 |
AB |
6m.1 |
9m.1 |
1.8" |
130° |
2015 |
Lyr |
18h54m52.52s / +33°58'06.90" |
|
|
|
SHJ282 |
AC |
6m.1 |
7m.6 |
45.4" |
350° |
2018 |
|
|
|
|
|
SHJ282 |
AD |
6m.1 |
11m.0 |
214.8" |
295° |
2015 |
|
|
Christopher Hay
Seeheim (Germany) |
10x42 |
SHJ282 (AC): Stabilised binoculars, handheld. Wide split, the A component yellowish. Alias South 282. According to Stelledoppie a physical double. |
|
Robert Zebahl
Leipzig (Germany) |
16x70 |
SHJ282 (AC): 2020-07-06: Easy, striking with reasonably apparent color contrast: yellowish to slightly orange & bluish. |
|
Christopher Hay
Seeheim (Germany) |
60mm (15x) |
SHJ282 (AC): Wide split. Blue colour of C component much more striking than the orange colour of the A component. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (22x) |
SHJ282 (AC): Fairly bright and wide pair. The double star was conspicuous, especially in regard to its color: A appeared orange, C rather grey-bluish. It could be observed together with Messier 57 and beta & gamma Lyrae. Very nice. |
|
René Merting
Drachhausen (Germany) |
76mm (18x) |
SHJ282 (AC): bei 18x ist das Pärchen schon sehr auffällig - A ist hellgelb mit schönem Kontrast zur nördlich stehenden, gut getrennten B-Komponente - bei 57x präsentiert sich B in einem zarten stahlblau |
|
Uwe Pilz
Leipzig (Germany) |
105mm (21x) |
SHJ282 (AC): Orange und türkis |
|
Uwe Pilz
Leipzig (Germany) |
105mm (180x) |
STT525 (AB): gelbweiß-blau |
|
Christopher Hay
Seeheim (Germany) |
125mm (23x) |
SHJ282 (AC): Widely split, dominates the field of view, very attractive. A component is tangerine orange, C component ice blue. An echo of Albireo. A true physical pair. |
|
Mark McCarthy
Fremont (California/USA) |
152mm (285x) |
STT525 (AB): Suspected at 175x, best seen 285x. Orange A, subtle elongation to notched with best seeing, unequal. Wide SHJ 282 AC also seen. WDS uncertain but there is a -34% parallax overlap, so it's not possible to be |
|
Mark McCarthy
Fremont (California/USA) |
178mm (205x) |
STT525 (AB): Extremely fine point shows just outside bright white A's first diffraction, only with best seeing and when A is a perfect disk. WDS uncertain, however unfortunately there is -34% parallax overlap, it is not physical |
|
Christopher Hay
Seeheim (Germany) |
180mm (200x) |
SHJ282 (AC): A is very distant from C but the two are still a fine pair. Colour of C is more striking than that of A, in a manner similar to my simultaneous observation with 60mm at 15x, but not quite as pronounced.
C has a companion set off from it by a hair of black. I estimate PA from C at approx. 80°, separation very roughly 2". Surprisingly can't find this companion in the double star catalogues. |
|
Frederik Wanink
Itterbeck (Germany) |
254mm (640x) |
STT525 (AB): 3er System, sehr schwierig wegen Helligkeitsunterschied |
|
Mark McCarthy
Fremont (California/USA) |
317mm (277x) |
SHJ282 (AC): Wide separation orange and blue, 2 delta mag. |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm |
STT525 (AB) |
|
Claus-Dieter Jahn
Leipzig (Germany) |
|
SHJ282 (AC): TS APQ 65/420mm, ZWO ASI 178mc, Livestack with Sharpcap, Exposure time: 1600x 0.6s |
|
|
|
★★
|
15 Aql, SHJ286 |
|
|
5m.5 |
7m.0 |
39.6" |
211° |
2019 |
Aql |
19h04m57.67s / -04°01'53.10" |
Christopher Hay
Seeheim (Germany) |
7x42 |
Handheld binoculars in reclining chair. Difficult due to hand tremor and significant delta-mag, but definitely split.
In handheld 15x60 binoculars quite clearly split.
In handheld stabilised 20x60 binoculars a strong wide pair, primary is golden-yellow. |
|
René Merting
Drachhausen (Germany) |
8x30 |
beide Sterne zeigen sich gut getrennt, wobei B im Süden lediglich dunkler wirkt, Farben sind nicht wirklich erkennbar |
|
René Merting
Drachhausen (Germany) |
10x35 |
ein wunderschöner Doppelstern - die beiden Mitglieder sind sehr hell - B im Südwesten wirkt kupfern, A eher gelblich - Trennung ordentlich |
|
René Merting
Drachhausen (Germany) |
10x50 |
sehr auffälliges dicht zusammen stehendes Sternpaar - Komponente A im Norden ist hellgelb, B grau-orange, schöner Farbkontrast |
|
René Merting
Drachhausen (Germany) |
12x50 |
ein ordentlich getrenntes Sternpaar - A im NO ist weißgelb, B wirkt gelborange |
|
René Merting
Drachhausen (Germany) |
16x70 |
ein wunderschönes ordentlich getrenntes Sternpaar - Komponente A im NO samtgelb, B dagegen apricot-orange und gut 1.5 Magnituden schwächer als A - zudem ein interessanter Farbvergleich möglich zu dem mit im Gesichtsfeld stehenden V Aql gut 1.7° weiter südlich, der farblich noch eine Schippe drauf legen kann mit einem kräftigen zinnober-orange |
|
Robert Zebahl
Leipzig (Germany) |
70mm (22x) |
Striking, pretty wide, uneven pair. Primary component gleamed in shiny orange, the companion appeared slightly orange. |
|
René Merting
Drachhausen (Germany) |
76mm (29x) |
bei 29x ein weit getrenntes Pärchen, B ist eine Größenklasse schwächer - A ist buttergelb, B wirkt noch etwas dunkelgelblicher |
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
bei 32x weit getrennt, Komponente A hellgelb, B dagegen orangefarben - sehenswert |
|
Sarah Gebauer
Germany |
150mm (125x) |
gut gefunden, beide Sterne stehen in weitem Abstand zueinander |
|
Robert Zebahl
Leipzig (Germany) |
200mm (37x) |
Conditions in the target region: SQM-L 19.9
Easy to split, evident. Both components appeared slightly orange colored. |
|
|
|
★★★
|
beta Cyg, 6 Cyg, Albireo, STFA43 |
|
AB |
3m.2 |
4m.7 |
34.7" |
54° |
2021 |
Cyg |
19h30m43.29s / +27°57'34.90" |
Christopher Hay
Seeheim (Germany) |
7x42 |
Handheld binoculars in reclining chair. Following a surprisingly easy split of Zeta Lyr, I try out whether Albireo may also be splittable. Indeed, the pair is split, difficult but definite. Staring at Altair (Alpha Aql) for a few seconds with the binoculars prior to observing Albireo heigtens my acuity and makes the split more definite. Component A exhibits a mild orange-yellow hue. |
|
Robert Zebahl
Leipzig (Germany) |
8x40 |
Well split, but I didn't recognised any color. |
|
René Merting
Drachhausen (Germany) |
10x50 |
Komponente A ist gleißend hell und stroh-gelb, Komponente B ist deutlich schwächer leicht abgesetzt von A erkennbar und strahlt eigenartig mint-grün |
|
Christopher Hay
Seeheim (Germany) |
12x36 |
Well split. A golden-red, B cold blue. Gorgeous! |
|
Robert Zebahl
Leipzig (Germany) |
16x70 |
2020-07-06: Bright orange & white-bluish. |
|
Robert Zebahl
Leipzig (Germany) |
80mm (25x) |
One of the most beautiful double stars in the northern hemisphere. Differences in brightness and color (orange-blue) are brilliant! Even under urban conditions with small aperture an enjoyment! |
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
bei 32x stehen beide Sterne weit getrennt - Komponente A mit einem satten zitronen-gelb, Komponente B mit einem leichten Stich ins Blaue |
|
Jörg S. Schlimmer
Germany |
127mm (203x) |
easy to split |
|
Sarah Gebauer
Germany |
150mm (116x) |
Erstbeobachtung August 2019: deutlicher Farbunterschied zwischen blau und sattem Gelb zu sehen |
|
Jörg S. Schlimmer
Germany |
305mm (170x) |
alle Komponenten einfach zu trennen |
|
|
Werner E. Celnik
Rheinberg (Germany) |
150mm |
|
|
Werner E. Celnik
Rheinberg (Germany) |
150mm |
|
|
|
|
★★★
|
STFA50, 30/31 Cyg, omicron Cyg |
|
AD |
3m.9 |
4m.8 |
336.7" |
322° |
2016 |
Cyg |
20h13m37.90s / +46°44'28.80" |
|
|
|
|
AC |
3m.9 |
7m.0 |
108.6" |
173° |
2016 |
|
|
Robert Zebahl
Leipzig (Germany) |
naked eye |
AD: Well split with noticeable difference in brightness. |
|
Christopher Hay
Seeheim (Germany) |
3x63 |
AD: Self-built binoculars, hence the unusual specification.
Widely split, A (31 Cyg) light orange, D (30 Cyg) light blue. |
|
Christopher Hay
Seeheim (Germany) |
7x50 |
A-D: Widely split, A (31 Cyg) luminous orange-red, D (30 Cyg) luminous ice-blue. C set off from A as a fine speck of light. |
|
Robert Zebahl
Leipzig (Germany) |
8x40 |
AD: Wonderful double star for binoculars. Large distance of the components, brighter once (31 Cyg) appeared slightly orange, the fainter (Cyg 30) more bluish. |
|
Robert Zebahl
Leipzig (Germany) |
8x40 |
AC: Observation at full moon. Easily split with big difference in brightness. Brighter component slightly orange. C component rather faint. |
|
Christopher Hay
Seeheim (Germany) |
15x45 |
A-D: Very wide apart but still perceived as belonging together. A (31 Cyg) orange-red, D (30 Cyg) ice-blue. C well set off from A and light ice-blue, like an echo of D. A delightful group of three for binoculars at this power, further accentuated by nearby orange Omicron2 Cygni. Both the brightnesses and colour hues of Omi1A and Omi2 appear practically identical. |
|
Robert Zebahl
Leipzig (Germany) |
16x70 |
2020-07-03: Fantastic sight. A: bright orange, D: white-bluish, C: light blue. Very beautiful field. |
|
René Merting
Drachhausen (Germany) |
18x70 |
wunderschön - Komponente A präsentiert sich buttergelb - die südliche, schwächste Komponente C zeigt sich aquamarinblau - D im Norden ist reinweiß und steht dreimal weitere entfernt wie AC |
|
Robert Zebahl
Leipzig (Germany) |
80mm (25x) |
AC: Similar to the observation with binoculars. C component appeared bluish and gave good contrast to the orange colored 31 Cyg. |
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
bei 32x sind alle drei Sterne weit getrennt und doch irgendwie zusammengehörend, Komponente A ist rapsgelb und am auffälligsten, Komponente D strahlt weiß und die schwächste Komponente C schimmert bläulich, schöner Anblick |
|
Robert Zebahl
Leipzig (Germany) |
102mm (28x) |
Bright, wide apart and wonderful contrast in color. A: light yellowish-orange, C: blue, D: light blue. |
|
Sarah Gebauer
Germany |
150mm (30x) |
die drei Komponenten plus Omicron2 bilden ein wunderschönes, sehr langes und spitzes Dreieck und zeigen dabei wundervolle Farben, Komponente A von o1 sowie o2 erscheinen schön gelblich, Komponente D von o1 hat einen deutlichen Blaustich im Weißen, wirklich ein sehr schönes Gesamtbild - auf Komponente C hatte ich nicht geachtet |
|
Sarah Gebauer
Germany |
150mm (85x) |
dieses Mal nur die drei dicht beieinanderstehenden Komponenten A, C und D im Sichtfeld gehabt, Komponente A ist wieder deutlich gelbgold, C wirkt leicht bläulich und Komponente D wirkt dieses Mal eher weiß |
|
|
|
★★★
|
BLL49, U Cyg |
|
|
8m.0 |
9m.0 |
65.4" |
231° |
2015 |
Cyg |
20h19m41.66s / +47°54'19.90" |
Robert Zebahl
Leipzig (Germany) |
16x70 |
2020-07-03: Easy split with very good color contrast: white and clear orange. |
|
Robert Zebahl
Leipzig (Germany) |
102mm (28x) |
2019-08-22: While the primary component appears quite unspectacular in a white, the companion U Cygni is much more interesting. It is a carbon star whose brightness varies between 5m9 and 12m1 with a period of about 463 days. It appears in mostly intensely orange, and even deep red in the towards its minimum. Extremely rewarding! |
|
|
|
★★
|
delta Cep, 27 Cep |
BU702 |
AB |
4m.2 |
13m.0 |
21.5" |
282° |
2015 |
Cep |
22h29m10.25s / +58°24'54.70" |
|
|
|
STFA58 |
AC |
4m.2 |
6m.1 |
41.0" |
191° |
2018 |
|
|
|
|
|
DAL45 |
AD |
4m.2 |
13m.9 |
109.0" |
39° |
2015 |
|
|
|
|
|
DAL45 |
DE |
13m.9 |
14m.0 |
1.4" |
23° |
2008 |
|
|
Christopher Hay
Seeheim (Germany) |
7x45 |
AC: Hand tremor hampers splitting A and C at this low magnification, as the apparent separation is small. Nonetheless, a grey-blue C dances next to the luminous-orange A.
Component A is the prototype of the Cepheid class of variable stars, with a brightness variation of a full magnitude over 5 days. To assess a somewhat difficult handheld binocular split like this it would really be necessary to know the momentary brightness of A, but I didn’t have a telescope at hand. |
|
René Merting
Drachhausen (Germany) |
15x56 |
AC: ein wunderschönes Paar - A strahlt satt gelb, C zeigt sich gut getrennt und tendiert mehr ins weißgraue - dadurch ein schöner Farbkontrast |
|
Robert Zebahl
Leipzig (Germany) |
16x70 |
AC: 2020-09-20: Nice separation with noticeable difference in brightness. Slightly yellowish & white-bluish. |
|
Robert Zebahl
Leipzig (Germany) |
55mm (27x) |
AC: At 27x easy to separate, rather wide apart with clear difference in brightness. At 38x the colors are slightly better visible: A shines in bright orange, C appears rather grey-bluish. |
|
Robert Zebahl
Leipzig (Germany) |
80mm (25x) |
AC: Obvious difference in brightness and color. Brighter component slightly orange, weaker bluish. Could be Albireo's little brother ;) |
|
Sarah Gebauer
Germany |
150mm (85x) |
AC: die hellere Komponente ist sehr intensiv und richtig schön goldgelb und die zweite, deutlich schwächere Komponente hat einen sichtbar bläulichen Farbstich, insgesamt schon ab 21x sehr schön anzuschauen |
|
Mark McCarthy
Fremont (California/USA) |
508mm (667x) |
DE: Slight brightening in the diffraction ring |
|
|
Frederik Wanink
Itterbeck (Germany) |
254mm |
AC |
|
|
