|
m1 |
m2 |
ρ |
θ |
Year |
|
Coordinates (J2000) |
|
★★★
|
STTA254, WZ Cas |
|
AB |
7m4 |
8m3 |
57.8'' |
89° |
2018 |
Cas |
00h01m15.85s |
+60°21'19.00" |
|
|
|
|
AC |
7m4 |
9m6 |
155.4'' |
324° |
2015 |
|
|
|
|
|
|
|
AD |
7m4 |
10m3 |
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 dunkel-gelb (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 |
|
|
|
|
★★
|
STF88, psi 1 Psc |
|
AB |
5m3 |
5m5 |
29.2'' |
160° |
2018 |
Psc |
01h05m40.93s |
+21°28'23.60" |
Christopher Hay
Seeheim (Germany) |
7x45 |
Very tight but definitely split, binoculars handheld. Component A is very slightly brighter than B. |
|
René Merting
Drachhausen (Germany) |
10x50 |
ein etwas mehr als knapp getrenntes Pärchen zweier gleichheller Sterne |
|
Christopher Hay
Seeheim (Germany) |
15x45 |
Well split, binoculars with internal stabilisation. Component A appears at first to be more orange than component B, but after about ten seconds the orange impression flips to component B, and from there on goes back and forth. Visited Psi1 Psc several times, taking breaks of a few minutes in-between, and each time the same effect occurred, with A initially appearing to be on the orange side. |
|
René Merting
Drachhausen (Germany) |
16x70 |
ein ordentlich getrenntes helles Sternpaar, die südliche B-Komponente wirkt etwas weniger weiß - schöner Anblick |
|
Christopher Hay
Seeheim (Germany) |
18x80 |
Psi1 Psc is well separated. Very strong visual presence in this instrument. Components almost identically bright, colourless. Strongly supplemented to the south in 4° field of view by Psi2, Psi3 and Chi. Field relatively empty to the north, which gives the field further tension. According to Stelledoppie a true physical double 275 light years distant. |
|
|
|
★★
|
zeta Psc, 86 Psc, STF100 |
|
AB |
5m2 |
6m3 |
23.2'' |
63° |
2018 |
Psc |
01h13m43.80s |
+07°34'31.80" |
Christopher Hay
Seeheim (Germany) |
7x50 |
On tripod. Fine split with a sliver of black between the components. No particular colour. |
|
Christopher Hay
Seeheim (Germany) |
15x45 |
Cleanly split. Western component distinctly brighter, no colour impression. |
|
Christopher Hay
Seeheim (Germany) |
180mm (110x) |
Despite the wide separation the pair holds together visually very strongly, and dominates the FOV. And indeed, Stelledoppie states it is a true physical pair at 174 light years from us. Component A is ice-blue. I probably wouldn't have any strong colour impression coming across component B on its own, but standing next to A it seems a washed-out orange. |
|
Robert Zebahl
Leipzig (Germany) |
200mm (37x) |
Visually evident as double star and easy to find. Well split with slight difference in brightness. |
|
|
|
★★★
|
S398 |
|
AB |
6m3 |
8m0 |
68.9'' |
100° |
2018 |
Psc |
01h28m22.92s |
+07°57'40.90" |
Christopher Hay
Seeheim (Germany) |
7x50 |
On tripod. Wide split. A orange-red, B a tiny pinprick of light. Attractive sight in 7.3° field of view, with Zeta Psc neatly on western edge of FOV.
Physical double according to Stelledoppie.
Three-star rating awarded because this is a physical double that can be resolved at 7x, while dominating the field of view with more power and presenting a strong colour contrast with more aperture (see 20x80 observation below). As an added bonus, S398 is just half a degree south of the ecliptic and is thus visited regularly by planets and the moon. |
|
Christopher Hay
Seeheim (Germany) |
20x80 |
Wide split. A reddish-white, B blue-white. Very strong visual presence with no competition in 2.5° field of view, accentuated nicely by 6-mag 96 Psc about 2/3° to the south. |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
orange with 1 delta mag white to east. |
|
|
|
|
H6 69, 14 Ari |
|
AB |
5m0 |
8m0 |
93.1'' |
35° |
2014 |
Ari |
02h09m25.29s |
+25°56'23.90" |
|
|
|
|
AC |
5m0 |
8m0 |
106.0'' |
279° |
2014 |
|
|
|
Christopher Hay
Seeheim (Germany) |
7x50 |
On tripod. C presents as a micro-fine point of light, set off well from A. No trace of B, see on this my observation in the same night with 180mm aperture. |
|
Christopher Hay
Seeheim (Germany) |
15x45 |
Binoculars with internal stabilisation, handheld. C far distant from A. Due to this distance and the major delta-mag the two stars do not present the appearance of a double, C looks rather like a field star.
Yet in fact the two are a true physical double at a distance to us of 289 light years. |
|
Christopher Hay
Seeheim (Germany) |
71mm (13x) |
A-C wide split, C a fine little point of light.
Visually un-exciting as such, the attraction of this pair resides partly in contemplating that it is a true physical double. Furthermore, in this small refractor 14 Arietis AC can be observed together with another physical double in the 5.5° FOV, namely Lambda Arietis (listed here as H5 12). |
|
Christopher Hay
Seeheim (Germany) |
180mm (113x) |
Components A, B and C from a wide grouping. B is very faint, somewhere around 11m to 12m, in contrast to the 8m0 stated by Stelledoppie. Observed on 12 February 2021. Is B variable? DSS sky survey shows the same delta-mags that I saw, so it rather appears that Stelledoppie has a mistake in its database.
A is creamy white, C grey, B too faint for any definite colour impression.
According to Stelledoppie a physical triple system at a distance to us of 289 light years. |
|
|
|
★★
|
59 And, STF222 |
|
|
6m0 |
6m7 |
16.5'' |
36° |
2018 |
And |
02h10m52.83s |
+39°02'22.40" |
Robert Zebahl
Leipzig (Germany) |
8x40 |
Separated, but very tight. I used a tripod. |
|
René Merting
Drachhausen (Germany) |
16x70 |
ein sehr dichtes Sternpaar, ganz knapp getrennt sichtbar - Komponente B im NO ist eine halbe Größenklasse schwächer - leichter Farbunterschied und das Phänomen, dass der Farbkontrast zwischen beiden Sternen immer hin und her springt - ich kann nicht genau sagen, welcher Stern das kühlere oder wärmere Weiß hat |
|
Christopher Hay
Seeheim (Germany) |
71mm (32x) |
Widely separated. Primary slightly orange, secondary blueish. Very attractive and without visual competition in 2.5° FOV.
A physical double at a distance to us of 456 light years. |
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
bei 32x ein auffälliges Sternpaar - gut getrennt mit leichtem Farbkontrast, Komponente A im SW ist weiß, die Komponente B zwar auch, aber mit einem Stich ins orange, eigenartig - Helligkeitsunterschied eine halbe Magnitude |
|
Robert Zebahl
Leipzig (Germany) |
120mm (18x) |
Well split with noticeable difference in brightness. |
|
Robert Zebahl
Leipzig (Germany) |
200mm (100x) |
Conditions in the target region: SQM-L 20.4
Nice and evident double star, easy to split. About 12 arcminutes NE there is NGC828 (v12.3m), |
|
|
|
★★
|
AG304, 15 Tri |
|
|
5m6 |
6m8 |
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 |
|
|
|
★★
|
S430 |
|
AB |
7m2 |
7m5 |
41.0'' |
96° |
2017 |
Per |
03h38m18.83s |
+44°48'06.50" |
Christopher Hay
Seeheim (Germany) |
7x50 |
On tripod. Well separated. A evidently brighter than B. A appears to tend towards orange, B rather towards blue.
Most of the Alpha-Persei cluster can be viewed together with S430 in 7.2° FOV. Seen thus, S430 feels likes a distant little echo of the powerfully orange-blue pair Sigma Per in the cluster.
South 430 is a physical double at a distance to us of 498 light years. |
|
Christopher Hay
Seeheim (Germany) |
15x45 |
Binoculars with internal stabilisation, handheld. AB widely separated, greater brightness of A is distinct. The colour hues that were uncertain in 7x50 are now clearer. Colours confirmed in 15x60 on tripod. |
|
René Merting
Drachhausen (Germany) |
16x70 |
ein schöner Fernglas-Stern - beide Komponenten sind hell genug und stehen weit genug auseinander - sie sind mehr als ordentlich getrennt - die B-Komponente im Osten wirkt ein bisschen wärmer im Farbton |
|
|
|
★★★
|
STFA10, the 2 Tau |
|
AB |
3m4 |
3m9 |
347.9'' |
339° |
2016 |
Tau |
04h28m39.74s |
+15°52'15.20" |
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. |
|
|
|
★
|
STF747 |
|
AB |
4m7 |
5m5 |
36.0'' |
225° |
2018 |
Ori |
05h35m02.68s |
-06°00'07.20" |
Christopher Hay
Seeheim (Germany) |
7x45 |
Clearly split, with very distinct magnitude difference between A and B components. Hand tremor prevents detection of colour contrast, if there is one at all. A very pleasing tip to Orion’s Sword.
A true physical pair according to Stelledoppie. Distance to us of 1610 light years could indicate membership of stellar association Orion OB1 and thus physical relationship to Orion nebula complex. |
|
René Merting
Drachhausen (Germany) |
8x30 |
zwei helle Sterne knapp getrennt, Komponente B im Südwesten nur knapp schwächer |
|
René Merting
Drachhausen (Germany) |
100mm (20x) |
bei 32x zeigt sich B südwestlich von A gut eine halbe Größenklasse schwächer - B wirkt ein wenig kühler, bläulicher - zurück auf 20x, weiterhin leichte Trennung und Sichtbarkeit |
|
|
|
★★★
|
sigma Ori, 48 Ori |
BU1032 |
AB |
4m1 |
5m3 |
0.3'' |
77° |
2015 |
Ori |
05h38m44.77s |
-02°36'00.20" |
|
|
|
STF762 |
AB-C |
3m8 |
8m8 |
11.6'' |
237° |
2016 |
|
|
|
|
|
|
STF762 |
AB-D |
3m8 |
6m6 |
12.9'' |
84° |
2018 |
|
|
|
|
|
|
STF762 |
AB-E |
3m8 |
6m3 |
41.5'' |
62° |
2018 |
|
|
|
|
|
|
STF762 |
DC |
6m6 |
8m8 |
23.7'' |
253° |
2018 |
|
|
|
|
|
|
STF762 |
EC |
6m3 |
8m8 |
52.9'' |
241° |
2018 |
|
|
|
|
|
|
STF762 |
ED |
6m3 |
6m6 |
29.9'' |
233° |
2018 |
|
|
|
|
|
|
STF3135 |
AB-F |
3m8 |
7m9 |
208.0'' |
324° |
2016 |
|
|
|
Christopher Hay
Seeheim (Germany) |
10x42 |
Binoculars with internal stabilisation, handheld.
AB-D: No split, nor any elongation of AB towards D seen.
AB-E: E is set off well from AB but harder to split than the numbers would suggest. This is partly due to the major delta-mag, and partly to the circumstance that D effectively reduces the "free" stretch of sky to 29".
STF761 is a nice complement a few minutes of arc to the west and makes the visual impression of possibly belonging to the Sigma Ori complex, but Stelledoppie doesn't confirm this. |
|
Christopher Hay
Seeheim (Germany) |
15x45 |
Binoculars with internal stabilisation, handheld.
AB-D: No split acheived. However, focussing on AB feels uncertain, presumably due to disturbance by D. Also not split with 15x60 on tripod.
AB-E: E is set off well from AB. |
|
Christopher Hay
Seeheim (Germany) |
25x80 |
AB-D: D is set off nicely from AB and appears very slightly on the orange side, particularly in contrast to E. |
|
René Merting
Drachhausen (Germany) |
100mm (64x) |
AB-C: bei 64x zeigt sich Komponente C ganz schwach südwestlich von AB
AB-D: bei 32x schließt sich an die zartgelbe Komponente AB unmittelbar im Osten dicht stehend D weißorange an - ein schickes Trio zusammen mit E weiter östlich
AB-E: bei 32x zeigt sich in vierfacher Entfernung von AB-D die Komponente E weiter östlich in einer Linie - E ist ähnlich hell wie D |
|
Sarah Gebauer
Germany |
150mm (125x) |
ein sehr schönes Muster des Mehrfachsystems, auch wenn längst nicht alle Komponenten getrennt zu sehen waren, AB-C, AB-D und AB-E getrennt, A und B nicht |
|
Uwe Pilz
Leipzig (Germany) |
320mm (80x) |
AB-C-D schon im Aufsuchokular sichtbar. Sehr lebhafte Farben, einer der schönsten Mehrfachsterne überhaupt. Im selben Feld mit STF761. |
|
|
|
★★
|
HJ3945, 145 CMa, Winter Albireo |
|
AB |
5m0 |
5m8 |
26.8'' |
50° |
2015 |
CMa |
07h16m36.84s |
-23°18'56.10" |
René Merting
Drachhausen (Germany) |
8x30 |
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 |
ein knapp getrenntes Paar (nicht besser als im 8x30) - Komponente A leicht gelblich, B ist kühler, weißlich |
|
René Merting
Drachhausen (Germany) |
18x70 |
ein gut getrenntes Pärchen - Komponente A im Südwesten ist apfelsinenorange, B wirkt anfangs eisblau, bei längerer Betrachtung weißgrau |
|
René Merting
Drachhausen (Germany) |
100mm (20x) |
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) |
sofort auffallend, blau-orange |
|
Robert Zebahl
Leipzig (Germany) |
120mm (23x) |
Evident, easy to split at large angular distance. Brighter component appeared very orange, fainter one bluish. |
|
|
|
|
STF1321 |
|
AB |
7m8 |
7m9 |
17.0'' |
98° |
2018 |
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. |
|
|
|
★★
|
STF1540, 83 Leo |
|
AB |
6m5 |
7m5 |
28.4'' |
150° |
2018 |
Leo |
11h26m45.32s |
+03°00'47.20" |
Stefan Loibl
Rosenheim (Germany) |
10x50 |
clearly split, little difference in magnitude |
|
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 |
|
|
|
★★★
|
STF1694 |
|
AB |
5m3 |
5m7 |
21.8'' |
324° |
2017 |
Cam |
12h49m13.80s |
+83°24'46.30" |
Christopher Hay
Seeheim (Germany) |
7x45 |
Handheld. Very elongated with absolutely clear PA, but hand tremor prevents separation. |
|
Christopher Hay
Seeheim (Germany) |
7x50 |
On tripod. Split with a sliver of black inbetween, with creamy-white components, attractive sight. Dry-frozen night in January, 47° elevation above horizon. |
|
Christopher Hay
Seeheim (Germany) |
10x42 |
Binoculars with internal stabilisation, handheld. Fine split with definite difference in brightness of components. |
|
Christopher Hay
Seeheim (Germany) |
15x45 |
Binoculars with internal stabilisation, handheld. AB cleanly split with distinct difference in magnitudes. Strong visual presence of this physical double is enhanced by the complete lack of visual competition in 4.5° FOV. Interesting to contemplate that in the 9th century AD Struve 1694 was just as close to the celestial north pole as Polaris (also a physical double) is today. Also known as 32H Cam, which comes from the celestial map produced by Johannes Hevelius in the late 17th century. |
|
Christopher Hay
Seeheim (Germany) |
25x80 |
Well apart but by no means falling apart, and totally dominating the 3.2° field of view. Neither component would appear particularly colourful on its own, but viewed together the primary is definitely more on the orange side and the secondary more bluish.
At 25x in 3.2° FOV and with an exit pupil around 3mm making the sky background pitch-black, STF 1694 has such a strong visual impact that it becomes a showpiece specimen of a double star. Three-star rating awarded because of this strong visual presence plus binocular accessibility (see 7x50 observation) plus true physical nature of the double (according to Stelledoppie) plus pole-star role in the Middle Ages. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (15x) |
Easy to split with noticeable angular distance and slight difference in brightness. The faint component tends to be more bluish, the brighter one appeared more light yellowish. |
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
bei 32x strahlen beide Komponenten richtig hell und gut getrennt - leichter Farbkontrast, Komponente A ist leicht gelblich, B wirkt eher unterkühlt |
|
|
|
★★
|
zeta UMa |
STF1744, 79 UMa, Mizar |
AB |
2m2 |
3m9 |
14.4'' |
153° |
2017 |
UMa |
13h23m55.42s |
+54°55'31.50" |
|
|
|
STF1744, Mizar & Alcor |
AC |
2m2 |
4m0 |
707.7'' |
72° |
2017 |
|
|
|
|
|
|
SMR4 |
AD |
2m2 |
7m6 |
492.8'' |
102° |
2017 |
|
|
|
Christopher Hay
Seeheim (Germany) |
naked eye |
AC, Mizar/Alcor: After seeing the two stars separated for the first time under clear corona skies in spring 2020, this became a regular and easy sighting. Naked-eye star splitting is a skill that develops rapidly with practice. Mizar and Alcor are wide apart with my 60-year-old eyes, and occasionally Alcor appears slightly bluish. |
|
Christopher Hay
Seeheim (Germany) |
7x50 |
On tripod. Mizar (AB) is an uneven figure-8, the smaller circle of the 8 pointing to an estimated PA of 150°. Without knowing that this is a double star one might think the binoculars have collimation issues, but Epsilon UMa displays a perfect little Airy disk.
Alcor (C) appears bluish, Mizar creamy-white.
D seems reddish. |
|
René Merting
Drachhausen (Germany) |
8x30 |
AC: ein ultraweit getrenntes Pärchen - Komponente C im NO schätze ich eine Größenklasse schwächer ein (1.78 mag laut stelle Doppie) - Komponente D (SMR4) ist östlich der beiden Sterne ganz schwach erkennbar, D steht dabei näher zu C |
|
Robert Zebahl
Leipzig (Germany) |
8x40 |
AB: 2020-04-05: Even with tripod not separable. |
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Christopher Hay
Seeheim (Germany) |
15x45 |
AB: Binoculars with internal stabilisation, handheld. AB nicely split with strong difference in magnitudes between A and B, very pretty. |
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Christopher Hay
Seeheim (Germany) |
42mm (12x) |
AB: At 6.3x substantially elongated with clear positions of the brighter/darker components. At 10.7x a very stretched figure-eight tantalisingly close to popping apart. At 12x cleanly split with a stable sliver of black between A and B. |
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Robert Zebahl
Leipzig (Germany) |
70mm (10x) |
AB: 2020-04-12: Observation from city with a 70/400mm ED refractor, for which I made aperture masks from 10mm to 60mm. Goal was to find the minimum magnification for a successful split.
70mm: At 12.5x no separation of the components possible due to outshining. Grey filters brought a slight improvement, but again no separation or elongation was visible.
60mm: At 12.5x slight outshining of the companion, clearly elongated and almost separated.
50mm: At 12.5x the companion was almost outshined. A separation was just possible.
40mm: At 12.5x both components appear finely separated from each other.
30mm: At 10x not clearly separable due to outshining, but clearly elongated. At 12.5x then quite easy to separate with a fine star rendition.
20mm: At 10x the companion is still clearly visible, but quite close to the primary component. At 12.5x best view under the used apertures with a very fine rendition!
10mm: At 10x the companion appears very faint. Separation possible, but extremely tight. At 12.5x reasonably well separated. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (22x) |
AB: 2020-04-11: At 12x no separation possible, because the bright primary component outshines the companion. At 22x clearly separated, but still quite close together. |
|
Robert Zebahl
Leipzig (Germany) |
102mm (28x) |
First pastel sketch (Pitt pastel by Faber-Castell) of a double star on black paper, where also the halos were sketched around the stars. The stars themselves were redrawn with an Edding (Edding 1500, Soft Pastel white). The sketch shows the components A to D. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (288x) |
AB: mit viel Schwarz zwischen den Beugungsscheiben (1“9) |
|
Jörg S. Schlimmer
Germany |
127mm (87x) |
easy to split |
|
Sarah Gebauer
Germany |
150mm (83x) |
AB: einfacher, aber sehr schöner Doppelstern, Komponenten A und B mit 14,4'' Abstand stehen mit schönen Feldsternen zusammen im Bild |
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|
Werner E. Celnik
Rheinberg (Germany) |
120mm |
|
|
Robert Zebahl
Leipzig (Germany) |
|
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|
|
★★
|
STF1830 & STF1831 |
STF1831 |
AB |
7m2 |
9m6 |
5.8'' |
138° |
2017 |
UMa |
14h16m08.47s |
+56°42'45.70" |
|
|
|
STF1831 |
AC |
7m2 |
6m7 |
112.2'' |
219° |
2017 |
|
|
|
|
|
|
STF1831 |
CD |
6m7 |
13m1 |
112.1'' |
116° |
2016 |
|
|
|
|
|
|
STF1830 |
CE |
6m7 |
9m3 |
138.0'' |
245° |
2016 |
|
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|
|
|
STF1830 |
EF |
9m3 |
10m3 |
10.6'' |
312° |
2017 |
|
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|
|
|
STF1830 |
EG |
9m3 |
12m2 |
35.2'' |
81° |
2017 |
|
|
|
Christopher Hay
Seeheim (Germany) |
7x45 |
STF1831 (AC): Wide split at 7x but still a very distinct impression of being a double. No colour impression. Two fine pinpricks of light, rather attractive in 8° FOV.
According to Stelledoppie the A-C pair, at 509 light years distance to us, is the only physical pair in the whole STF 1830/1831 comples. A nice physical double for small binoculars. |
|
Robert Zebahl
Leipzig (Germany) |
8x40 |
STF1831 (AC): 2020-04-05: Fairly wide pair with slight differences in brightness and color. C appeared slightly orange, A on the other hand slightly bluish. Comparatively bright double star, which gives a nice view. |
|
Robert Zebahl
Leipzig (Germany) |
55mm (27x) |
STF1831 (AC): 2020-04-05: Moderate difference in brightness. C: pale orange, A: subtle blue. |
|
Robert Zebahl
Leipzig (Germany) |
70mm (57x) |
2020-04-11: At 22x the components AB, C, E & F are well visible and widely separated. E & F are comparatively faint. The C component in the middle appeared white-yellowish, AB rather white with a slight tendency to blue. At 57x, the pair AB with a clear difference in brightness can be easily split. An altogether rewarding and unusual multiple system. |
|
Uwe Pilz
Leipzig (Germany) |
105mm (88x) |
Komponente G erforderte 200x |
|
Mark McCarthy
Fremont (California/USA) |
317mm (553x) |
STF1831 (AB): One pair close to another, 5" and 2 delta mag. Part of a widely separated equal pair, and a gang of three stars further away -- five additional pairings in the system. |
|
René Merting
Drachhausen (Germany) |
320mm (72x) |
EF: bei 72x ein schwaches Sternpaar, gut getrennt - E ist gelblich, F eine halbe Größenklasse schwächer und grau
EG: bei 72 ist nordöstlich von EF noch ein ganz schwacher Lichtpunkt erkennbar - G hat ungefähr mit dreifachem Abstand EF |
|
René Merting
Drachhausen (Germany) |
320mm (72x) |
AB: bei 144x ist B ein bisschen mehr als knapp getrennt im SO von A erkennbar - B ist deutlich schwächer und grau gegen den weißgelblich strahlenden A - zurück auf 72x kann ich die beiden auch noch extrem knapp getrennt erkennen in guten Momenten - ein schönes Doppel zusammen mit STF1830 EF
AC: bei 72x fällt die helle Komponente C im Südwesten von AB zwar auf, ich hätte aber nicht vermutet, dass der Stern dazu gehört |
|
|
|
|
STF1850 |
|
|
7m1 |
7m6 |
25.2'' |
263° |
2018 |
Boo |
14h28m33.29s |
+28°17'25.90" |
Robert Zebahl
Leipzig (Germany) |
8x40 |
2020-04-05: Separated, but still quite close together with a moderate difference in brightness. |
|
René Merting
Drachhausen (Germany) |
16x70 |
ein gut getrenntes Paar zweier gleich heller Sterne - beide weiß |
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Robert Zebahl
Leipzig (Germany) |
70mm (22x) |
2020-04-24: Easily separated, medium bright with rather small difference in brightness and moderate distance. Fairly conspicuous. The components appeared white-yellowish and white-bluish. Beautiful double star. |
|
René Merting
Drachhausen (Germany) |
100mm (20x) |
bei 20x locker getrennt - Komponente B ist vielleicht eine halbe Magnitude schwächer als A und strahlt ein wenig dumpfer bzw. weniger weiß |
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|
Berthold Fuchs
Wiesbaden (Germany) |
130mm |
easy DS |
|
|
|
★★★
|
alpha Lib, Zubenelgenubi, Kiffa Australis, Lanx Australis |
SHJ186 |
AB |
2m7 |
5m2 |
231.1'' |
314° |
2012 |
Lib |
14h50m52.78s |
-16°02'29.80" |
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|
|
AOT53 |
AC |
2m7 |
12m5 |
275.6'' |
291° |
2000 |
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Christopher Hay
Seeheim (Germany) |
naked eye |
AB: Noticed with naked eye and without prior PA knowledge that a secondary was flickering next to Zubenelgenubi. Unexpected and first naked-eye sighting. Checked position with binoculars to be sure. Further naked-eye look at Mizar/Alkor (Zeta UMa) to gauge my momentary acuity and assess the difference to Alpha Lib. Zeta UMa more easily and widely split than ever before, and Alkor appeared for the first time bluish, so this was an exceptional night for naked-eye double-star splitting. Three-star rating awarded because Zubenelgenubi is the second-best naked-eye true-physical double star in the summer sky after Mizar/Alkor. |
|
Gerd Kohler
Langenzenn (Germany) |
254mm (76x) |
AB: Bläulich-weiß - leicht bläulich. |
|
Gerd Kohler
Langenzenn (Germany) |
254mm (76x) |
AC: Bläulich-weiß - weiß. Sehr schwacher Begleiter. |
|
|
|
★
|
H5 6, nu Sco |
|
AC |
4m3 |
6m6 |
41.3'' |
337° |
2018 |
Sco |
16h11m59.74s |
-19°27'38.30" |
Christopher Hay
Seeheim (Germany) |
15x45 |
Stabilised binoculars, handheld. Widely separated. Nice pair reminiscent of Beta Lyrae at 10x. Also split clearly in stabilised handheld 10x42, but view not as pleasing as in 15x45. |
|
Christopher Hay
Seeheim (Germany) |
15x60 |
Wide split. Secondary faint blue, a fine contrast to the very slightly yellowish-white primary. |
|
|
|
★★
|
STFA35, nu Dra, nu 1/2 Dra, 24/25 Dra |
|
|
4m9 |
4m9 |
62.1'' |
311° |
2017 |
Dra |
17h32m15.88s |
+55°10'22.10" |
Christopher Hay
Seeheim (Germany) |
6x20 |
Split, but not the fine sight it becomes in the 10x42. |
|
Christopher Hay
Seeheim (Germany) |
10x42 |
Clearly split, components of identical brightness, no colour. One of the finest doubles for 10x. |
|
René Merting
Drachhausen (Germany) |
16x70 |
der Doppelstern ist bereits mit bloßem Auge zu erkennen, im FG dann offenbart sich ein ordentlich getrenntes Pärchen zweier gleich heller Sterne |
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
bei 32x ein schönes, auffallendes Pärchen zweier gleich heller Sterne - beide sind komfortabel getrennt erkennbar und präsentieren sich weiß |
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Robert Zebahl
Leipzig (Germany) |
102mm (28x) |
Wide, bright, equal pair. Both components looked cream-white. Due to the distance a double for binoculars. |
|
Christopher Hay
Seeheim (Germany) |
125mm (80x) |
Gorgeous sight, widely split, dominating the FOV. The more northern B-component (=Nu1 Dra = 24 Dra) appears brighter and more yellowish than the A-component (=Nu2 Dra = 25 Dra). |
|
Sarah Gebauer
Germany |
150mm (85x) |
auf den ersten Blick "zwei Augen", die mich anleuchten, ansonsten aufgrund der wenigen Feldsterne eher unspektakulär |
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|
|
★
|
H6 2, 67 Oph |
|
AC |
4m0 |
8m1 |
55.1'' |
142° |
2016 |
Oph |
18h00m38.72s |
+02°55'53.70" |
René Merting
Drachhausen (Germany) |
10x50 |
ein einfacher Doppelstern - Komponente B steht mit gutem Abstand südöstlich von A - Komponente A ist gleißend weiß, B wirkt dagegen richtiggehend grau-braun |
|
Christopher Hay
Seeheim (Germany) |
15x45 |
AC: Stabilised binoculars, handheld. Components wide apart, almost too wide to appear as a double star. Secondary a fine speck of light beside the primary, which is >4mag brighter. According to Stelledoppie a true physical pair at a distance of 1230 light years. It is interesting to contemplate that at this distance in space the companion still looks so separate. “H“ in the catalogue name means that this double star is listed in the catalogue of W. Herschel. The 6 in the name means that it is a double star of the 6th Class [separation 1’ or larger] in Herschel’s system. |
|
René Merting
Drachhausen (Germany) |
16x70 |
auf den ersten Blick bin ich enttäuscht, weil ich nur einen hell strahlenden Stern erkennen kann - dann aber mit etwas Konzentration ist südöstlich von der Leuchtgranate ein ganz schwacher Begleiter zu erkennen - ein sehr ungleiches Paar mit geschätzt 4 Größenklassen Unterschied - Komponente C wirkt rotbraun und steht ordentlich getrennt von A |
|
Uwe Pilz
Leipzig (Germany) |
16x70 |
der helle ist gelb-weiß |
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Christopher Hay
Seeheim (Germany) |
25x80 |
Very far apart, almost so far as to appear to not belong together. However, in the 3° field of view 70 Ophiuchi, which is also a physical double, is seen to be also split. Thus a very attractive field overall.
67 Oph and 70 Oph are the left and right nostrils of the bull in the old constellation Taurus Poniatowski (Poniatowski’s Bull). 68 Oph (the tip of the bull’s nose) and 73 Oph (the bull’s right eye) are also double stars, but can’t be split at 25x. All four doubles – 67, 68, 70 and 73 Oph – are physical, a rare assemblage! |
|
René Merting
Drachhausen (Germany) |
100mm (20x) |
bei 20x großer Abstand zwischen beiden Sternen - weil Komponente A so gleißend hell strahlt, fehlt der mindestens um 3 Größenklassen schwächeren Komponente C im SO die Farbe, eher gräulich |
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|
|
★★
|
STF2280, 100 Her |
|
AB |
5m8 |
5m8 |
14.3'' |
183° |
2018 |
Her |
18h07m49.56s |
+26°06'04.40" |
René Merting
Drachhausen (Germany) |
10x50 |
zwei extrem dicht stehende helle Sterne - noch nicht getrennt, aber schön als 8 erkennbar |
|
Robert Zebahl
Leipzig (Germany) |
16x70 |
2020-07-05: Very nice, rather isolated double star. Striking. Similar bright component, both white. |
|
René Merting
Drachhausen (Germany) |
18x70 |
perfekt für 18-fache Vergrößerung - zwei gleich helle, dicht zusammen stehende Sterne - reinweiß und sehr auffällig, weil keine ähnlich hellen Sterne im Umfeld zu sehen sind |
|
René Merting
Drachhausen (Germany) |
100mm (32x) |
bei 32x ein schönes, enges Pärchen zweier gleichheller Sterne - beide gleich hell und reinweiß - zurück auf 20x zeigen sich beide Protagonisten weiterhin ganz knapp getrennt - Komponente B im Süden wirkt leicht gelblich und schwächer |
|
Uwe Pilz
Leipzig (Germany) |
105mm (26x) |
Weiß-orangeweiß |
|
Robert Zebahl
Leipzig (Germany) |
120mm (40x) |
Conditions in the target region: SQM-L 20.5
Very nice, evident double star with equally bright components. |
|
Karsten Kopp
Köln (Germany) |
140mm (94x) |
Doppelstern ist einfach zu trennen. Das besondere ist hier, dass die beiden Sterne recht alleine zu stehen scheinen. Beide erscheinen weiß. |
|
Sarah Gebauer
Germany |
150mm (54x) |
zwei hübsche Glanzpünktchen, die mich an ein Knöpflein mit zwei Löchern erinnern, der "typische" DS für mich: nicht zu eng, nicht zu weit, gleich hell, sehr nett |
|
Robert Zebahl
Leipzig (Germany) |
152mm (22x) |
Beautiful view. Easy to separate with components of the same brightness. It is noticeable that there are no brighter stars in the immediate vicinity, so that the double star stands out very well. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
100 Her. Bright equal wide yellow-white stars. [not physical] |
|
|
Berthold Fuchs
Wiesbaden (Germany) |
130mm |
easy DS |
|
|
|
★★★
|
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'' |
346° |
2018 |
|
|
|
|
|
|
STF2383, 5 Lyr, epsilon 2 Lyr |
CD |
5m2 |
5m4 |
2.4'' |
75° |
2018 |
|
|
|
|
|
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 |
|
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 |
|
|
|
★★
|
STT525 & SHJ282 |
STT525 |
AB |
6m1 |
9m1 |
1.8'' |
130° |
2015 |
Lyr |
18h54m52.52s |
+33°58'06.90" |
|
|
|
SHJ282 |
AC |
6m1 |
7m6 |
45.4'' |
350° |
2018 |
|
|
|
|
|
|
SHJ282 |
AD |
6m1 |
11m0 |
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. |
|
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. |
|
|
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 |
|
|
5m5 |
7m0 |
39.4'' |
210° |
2019 |
Aql |
19h04m57.67s |
-04°01'53.10" |
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. |
|
|
|
★★
|
STF2470 |
|
|
7m0 |
8m4 |
13.8'' |
267° |
2017 |
Lyr |
19h08m45.20s |
+34°45'37.10" |
Robert Zebahl
Leipzig (Germany) |
16x70 |
2020-07-06: Striking with well visible brightness difference. Very nice together with STF2474, which gives a similar view. A double-double for binoculars. |
|
René Merting
Drachhausen (Germany) |
100mm (20x) |
bei 20x knapp getrennt - wunderschönes Synchrontänzer-Doppel-Doppel zusammen mit STF2474 unmittelbar 10' südlich, weil A und B bei beiden Paaren mit gleichen Helligkeiten und Positionswinkel strahlen - A-Komponente von STF2470 knapp schwächer als A-Komponente von STF2470 |
|
Robert Zebahl
Leipzig (Germany) |
102mm (40x) |
Striking, especially with STF 2474 in one visual field. The color of the components was not clearly visible. Worthwhile! Sketch see STF 2474. |
|
Sarah Gebauer
Germany |
150mm (85x) |
nach mehreren Anläufen dann gefunden und bei 85x wie ein Doppel-Doppel im Bild, sehr sehenswert, auch der Abstandsunterschied (13,8'' bei STF 2470 und 15,9'' bei STF 2474) ist zu erkennen |
|
|
|
★★
|
STF2474 |
|
AB |
6m8 |
7m9 |
15.9'' |
264° |
2018 |
Lyr |
19h09m04.35s |
+34°35'59.90" |
Robert Zebahl
Leipzig (Germany) |
16x70 |
2020-07-06: Striking with well visible brightness difference. Very nice together with STF2470, which gives a similar view. A double-double for binoculars. |
|
René Merting
Drachhausen (Germany) |
100mm (20x) |
bei 20x knapp getrennt - wunderschönes Synchrontänzer-Doppel-Doppel zusammen mit STF2470 unmittelbar 10' nördlich, weil A und B bei beiden Paaren mit gleichen Helligkeiten und Positionswinkel strahlen - A-Komponente von STF2474 knapp heller als A-Komponente von STF2470 - bei 64x Komponente A ein wenig gelblich |
|
Robert Zebahl
Leipzig (Germany) |
102mm (40x) |
Pretty conspicuous, easy double star. Especially attractive with the nearby double star STF 2470, as both are very similar in brightness, distance and position angle. The color of both components appeared slightly yellowish-orange. |
|
Sarah Gebauer
Germany |
150mm (85x) |
nach mehreren Anläufen dann gefunden und bei 85x wie ein Doppel-Doppel im Bild, sehr sehenswert, auch der Abstandsunterschied (13,8'' bei STF 2470 und 15,9'' bei STF 2474) ist zu erkennen |
|
Christopher Hay
Seeheim (Germany) |
150mm (96x) |
Widely separated. Component A yellowish, B light ice-blue. A true physical pair in 171 LY distance. Very attractive in field of view together with Struve 2470 about 10 arcseconds north. The components of each of the two Struves have almost the same position angles, similar separations and very similar delta-magnitudes. Struve 2470 is like an echo of 2474 but with no definite colour impression. |
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|
|
★★★
|
beta Cyg, 6 Cyg, Albireo, STFA43 |
|
AB |
3m2 |
4m7 |
34.6'' |
54° |
2019 |
Cyg |
19h30m43.29s |
+27°57'34.90" |
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 |
|
|
|
|
★★
|
STFA46, 16 Cyg |
|
AB |
6m0 |
6m2 |
39.9'' |
134° |
2018 |
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. |
|
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 |
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|
|
★★★
|
STFA50, omicron Cyg, 30/31 Cyg |
|
AD |
3m9 |
4m8 |
336.7'' |
322° |
2016 |
Cyg |
20h13m37.90s |
+46°44'28.80" |
|
|
|
|
AC |
3m9 |
7m0 |
108.6'' |
173° |
2016 |
|
|
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Robert Zebahl
Leipzig (Germany) |
naked eye |
AD: Well split with noticeable difference in brightness. |
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Christopher Hay
Seeheim (Germany) |
3x63 |
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. |
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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. |
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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. |
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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 |
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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 |
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Robert Zebahl
Leipzig (Germany) |
102mm (28x) |
Bright, wide apart and wonderful contrast in color. A: light yellowish-orange, C: blue, D: light blue. |
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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 |
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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 |
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|
|
ENG72, 29 Cyg |
|
AB |
5m0 |
6m7 |
215.3'' |
155° |
2016 |
Cyg |
20h14m31.98s |
+36°48'22.10" |
Robert Zebahl
Leipzig (Germany) |
16x70 |
2020-09-20: Widely separated pair in nice star field with moderate difference in brightness and beautiful color contrast: whitish & yellow-orange. |
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★
|
STFA51, alpha Cap, alpha 1/2 Cap |
|
AE |
3m7 |
4m3 |
381.2'' |
290° |
2012 |
Cap |
20h18m03.22s |
-12°32'41.40" |
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). Western, weaker component Alpha 1 Cap well separated from Alpha 2 Cap in good moments. Much more difficult to split naked-eye than Mizar/Alcor (Zeta UMa). Not a physical double. |
|
René Merting
Drachhausen (Germany) |
12x50 |
ein wunderschönes Sternpaar, obwohl beide so weit auseinander stehen - die hellere östliche Komponente strahlt buttergelb, der Begleiter ist weiß |
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Sarah Gebauer
Germany |
100mm (21x) |
bei 21x sind alpha1 und alpha2 deutlich getrennt voneinander mit ganz leicht orangefarbenem Eindruck, sie stechen wie zwei helle Augen hervor |
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|
★
|
STF2687 |
|
|
6m4 |
8m3 |
26.2'' |
118° |
2018 |
Cyg |
20h26m23.47s |
+56°38'19.30" |
Robert Zebahl
Leipzig (Germany) |
16x70 |
2020-08-19: Gorgeous sight, separated with distinct brightness difference. Primary component appeared rather white with a greyish companion. With two similarly bright stars to the east and southeast STF 2687 forms a prominent triangle surrounded by several star chains. About 12 arcminutes apart to the southeast of STF 2687 is another pair of stars, which is particularly striking because of its color (bluish & orange). |
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|
|
★★
|
STF2703 |
|
AB |
8m3 |
8m4 |
25.0'' |
289° |
2017 |
Del |
20h36m49.41s |
+14°43'42.40" |
|
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|
|
AC |
8m3 |
8m8 |
77.8'' |
234° |
2016 |
|
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|
|
AD |
8m3 |
12m8 |
84.7'' |
347° |
2016 |
|
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|
|
BC |
8m4 |
8m8 |
67.0'' |
215° |
2016 |
|
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Robert Zebahl
Leipzig (Germany) |
16x70 |
2020-08-19: Immediately eye-catching multiple star located between beta and zeta Delphini. Components A, B & C are very easily seen as a triple system forming a striking triangle. A very slight difference in brightness between A & B is perceptible, as well as a color difference, though I cannot name any colors. Very nice. |
|
Uwe Pilz
Leipzig (Germany) |
16x70 |
AB |
|
René Merting
Drachhausen (Germany) |
100mm (20x) |
AB: bei 20x einfach - Komponente B im Westen ist nur minimal schwächer
BC: bei 20x ist Komponente C südwestlich von B in mehr als dem doppeltem Abstand von A zu B erkennbar, Helligkeitsunterschied gut eine halbe Größenklasse |
|
Uwe Pilz
Leipzig (Germany) |
105mm (144x) |
AB |
|
|
|
|
STF2769 |
|
AB |
6m7 |
7m4 |
18.2'' |
300° |
2018 |
Vul |
21h10m32.07s |
+22°27'16.70" |
Robert Zebahl
Leipzig (Germany) |
16x70 |
2020-08-19: The double star is located in a rather poor environment and is therefore very conspicuous. Clearly visible brightness difference with rather small separation. The primary component appeared white-bluish and thus quite cool, while the companion showed a warm hue (yellowish/orange?). |
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|
|
|
STF2832 |
|
AB |
7m8 |
8m3 |
13.0'' |
213° |
2018 |
Cyg |
21h49m14.48s |
+50°30'54.20" |
|
|
|
|
AC |
7m8 |
11m0 |
45.8'' |
321° |
2018 |
|
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|
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|
|
BC |
8m3 |
11m0 |
51.5'' |
335° |
2018 |
|
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|
Robert Zebahl
Leipzig (Germany) |
16x70 |
AB: 2020-08-19: Very nicely separated, slight difference in brightness. No color was visible. Towards northwest is pi 1 Cygni, which is surrounded by several medium bright and fainter stars and together with STF 2832 presents a very attractive view. The region southeast of STF 2832 looks rather poor. |
|
Mark McCarthy
Fremont (California/USA) |
203mm (205x) |
AB: White, wide, slight magnitude difference. Physical |
|
|
|
★★
|
delta Cep, 27 Cep |
BU702 |
AB |
4m2 |
13m0 |
21.5'' |
282° |
2015 |
Cep |
22h29m10.25s |
+58°24'54.70" |
|
|
|
STFA58 |
AC |
4m2 |
6m1 |
41.0'' |
191° |
2018 |
|
|
|
|
|
|
DAL45 |
AD |
4m2 |
13m9 |
109.0'' |
39° |
2015 |
|
|
|
|
|
|
DAL45 |
DE |
13m9 |
14m0 |
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. |
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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 ;) |
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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 |
|
|
