Double Stars - R.A. 00h-06h

A detailed description of the project, the data sources, additional websites and how you can contribute visual observations and photographs of double stars to the project are summarized in our introduction.

Double star lists:
Double/Multiple Stars 355
Visual Observations 563
Sketches 59
Photographs 3
Observers 9
Berthold Fuchs, Christopher Hay, Stefan Loibl, Mark McCarthy, Rene Merting, Uwe Pilz, Joerg S. Schlimmer, Frederik Wanink, Robert Zebahl
m1 m2 ρ θ Year Coordinates (J2000)
★★★ WZ Cas, STTA254 AB 7.4 8.3 58.0'' 89° 2017 Cas 00h01m15.85s +60°21'19.00"
Rene Merting
Drachhausen (Germany)
16x70 ein schöner Fernglas-Doppelstern - Komponente A im Westen präsentiert sich dunkel-gelb (noch nicht orange), B im Osten ist eher weißlich
Robert Zebahl
Leipzig (Germany)
80mm (33x) Nice double star. Brighter component appeared orange, the fainter more bluish.
Rene Merting
Drachhausen (Germany)
100mm (20x) 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) Splendid view. Primary component clearly orange, secondary blue. ../projects/doublestars/robert_zebahl/sketches/2019-08-22_wz_cas.jpg
Joerg S. Schlimmer
Germany
127mm (136x) Sehr schöner Farbkontrast ../projects/doublestars/joerg_schlimmer/sketches/Zeichnung_WZ_Cas_filtered_96dpi.jpg
Mark McCarthy
Fremont (California/USA)
317mm (553x) WZ Cas: Pretty, deep orange A and very wide half delta mag B, white.
Rene Merting
Drachhausen (Germany)
320mm (45x) 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 ../projects/doublestars/robert_zebahl/photographs/2019-07-16_wz_cas.jpg
STF3053 AB 6.0 7.2 15.2'' 71° 2018 Cas 00h02m36.08s +66°05'56.30"
Robert Zebahl
Leipzig (Germany)
63mm (46x) Easy to split with noticeable difference in brightness. Brighter component appeared slightly orange, fainter one bluish.
Rene Merting
Drachhausen (Germany)
100mm (20x) bei 20x knapp getrennt, Komponente B östlich ist halb so hell wie A - während Komponente A weiß-gelblich strahlt, zeigt B sich weiß mit einem leichten Stich ins bläuliche
Mark McCarthy
Fremont (California/USA)
317mm (553x) Pretty, orange and blue like Alberio. ~1.5 delta mag.
STF3051 7.7 9.5 16.8'' 23° 2015 Cep 00h02m46.53s +80°16'56.20"
Rene Merting
Drachhausen (Germany)
100mm (20x) bei 32x ein ordentlich getrenntes Sternpaar, Komponente B im Nordosten ist gerade so erkennbar, gut 1,5 Größenklassen schwächer als A und leicht gräulich - zurück auf 20x sind beide Sterne knapp getrennt zu erkennen
STF3054 8.1 9.1 33.6'' 181° 2015 Psc 00h03m03.76s +08°16'14.50"
Rene Merting
Drachhausen (Germany)
100mm (20x) bei 20x ein sehr einfacher Doppelstern - Komponente B im Süden steht weit weg von A und ist gut eine Magnitude schwächer - bei 32x strahlt A warm-weiß, B dagegen wirkt matt-blau-grau
STF3055 AB 7.3 10.3 5.7'' 359° 2015 Peg 00h04m00.24s +12°08'45.00"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Faint yellow-orange A with very small faint blue B to N, ~3" sep.
STT514 AB 6.2 9.7 5.1'' 170° 2015 And 00h04m36.60s +42°05'33.20"
Rene Merting
Drachhausen (Germany)
100mm (64x) bei 64x erst kommt Komponente B schwach zum Vorschein, Trennung ordentlich - vermutlich ist B für kleinere Vergrößerungen noch zu lichtschwach - bei 107x ist es dann leichter, die B-Komponente zu erfassen
STF3057 6.7 9.3 3.9'' 298° 2015 Cas 00h04m54.98s +58°31'55.80"
Rene Merting
Drachhausen (Germany)
100mm (64x) erst bei 64x wird die B-Komponente nordwestlich von A knapp getrennt schwach sichtbar (ich habe eher damit gerechnet) - bei 107x bleibt B schwach, Helligkeitsunterschied zu A mindestens zwei Größenklassen
Mark McCarthy
Fremont (California/USA)
317mm (277x) White with 2 delta mag blue-white B, 4-5".
Rene Merting
Drachhausen (Germany)
320mm (144x) gut getrenntes Paar, bei der Komponente B im Nordwesten gut 2 Größenklassen schwächer strahlt - beide Sterne warm weiß
FOX103 6.2 10.7 13.1'' 149° 2015 Peg 00h04m55.93s +26°38'55.70"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Orange A. Very faint B to south, well separated.
BU997 7.6 9.4 3.8'' 337° 2015 And 00h04m57.53s +45°40'25.60"
Rene Merting
Drachhausen (Germany)
100mm (64x) knapp getrenntes Pärchen - großer Helligkeitsunterschied - schön zusammen mit dem unmittelbar östlich stehenden Doppelstern STT547
Mark McCarthy
Fremont (California/USA)
317mm (553x) Orange and blue, pretty, well separated.
BU9001 AC 6.7 10.6 21.0'' 235° 2016 And 00h05m09.75s +45°13'44.50"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Faint companion, wide separation.
STT547 AB 9.0 9.2 6.0'' 190° 2018 And 00h05m41.03s +45°48'43.30"
Rene Merting
Drachhausen (Germany)
100mm (32x) bei 64x klare Trennung - ein relativ schwaches Pärchen - zurück auf 32x stehen beide dichter zusammen und können knapp getrennt werden
Uwe Pilz
Leipzig (Germany)
105mm (144x) Der nahe gelegene ß997 konnte nicht getrennt werden ../projects/doublestars/uwe_pilz/sketches/191123stt547.jpg
STF3061 8.4 8.5 7.8'' 149° 2016 Peg 00h05m44.45s +17°50'25.00"
Robert Zebahl
Leipzig (Germany)
70mm (22x) At 22x tiny pair with similarly bright, close components. Easy to separate at 44x. A small color difference was visible: The brighter component appeared somewhat warmer with a hint of orange, the fainter one slightly blueish.
Rene Merting
Drachhausen (Germany)
100mm (32x) bei 32x ein knapp getrenntes Pärchen - Komponente B im Südosten ist nur unwesentlich schwächer - beide weiß - ein schickes enges Paar
Mark McCarthy
Fremont (California/USA)
317mm (553x) Faint, but not too faint, near equal brightness, white, well separated.
Berthold Fuchs
Wiesbaden (Germany)
130mm easy DS ../projects/doublestars/berthold_fuchs/photographs/STF3061.png
STF3060 AB 9.3 9.7 3.4'' 136° 2016 Peg 00h05m55.56s +18°04'34.40"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Very close, ~3", equal brightness, pretty faint.
HU502 7.7 10.6 2.4'' 108° 1991 Cas 00h05m57.04s +49°37'20.40"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Hint of brightening, a bit of a smear in the diffraction. Marginal.
STF3062, V640 Cas 6.4 7.3 1.5'' 2018 Cas 00h06m15.81s +58°26'12.50"
Robert Zebahl
Leipzig (Germany)
152mm (129x) Nice view, clearly split, but tight with visible difference in brightness.
Frederik Wanink
Itterbeck (Germany)
254mm (460x) leicht ../projects/doublestars/frederik_wanink/sketches/STF3062.jpg
Mark McCarthy
Fremont (California/USA)
317mm (277x) Light yellow and a more orange yellow B, 3-4", 1 delta mag. PC (70.07 L.Y.)
Rene Merting
Drachhausen (Germany)
320mm (320x) erst bei 340x ist Komponente B knapp getrennt nördlich von A zu erkennen - beide Sterne sind relativ hell und haben relativ große Beugungsscheibchen, so dass die Trennung nur knapp zu sehen ist - nicht wirklich schön, wenn man in den Nächten vorher mit einem Refraktor Doppelsterne beobachtet hat
BU483 AC 7.0 7.7 158.5'' 268° 2015 And 00h09m03.67s +40°50'34.30"
Robert Zebahl
Leipzig (Germany)
8x40 Large distance with significant difference in brightness.
GIC2 AB 7.8 11.5 29.6'' 237° 2015 Peg 00h09m15.74s +25°16'55.00"
Mark McCarthy
Fremont (California/USA)
317mm (277x) New designation to me: Harry Giclas, Lowell proper motion survey -- the man who hired Robert Burnham! Faint yellow-orange star with fainter and very wide companion. Possible 3rd to make a triangle. (AB seen, 4 stars in system)
STF2 6.7 6.9 0.9'' 17° 2018 Cep 00h09m20.18s +79°42'52.40"
Uwe Pilz
Leipzig (Germany)
105mm (198x) Schneemann-Figur. Abstand 0“91 ../projects/doublestars/uwe_pilz/sketches/STF2.jpg
Frederik Wanink
Itterbeck (Germany)
254mm (640x) getrennt ../projects/doublestars/frederik_wanink/sketches/STF2.jpg
STF5, 34 Psc 5.5 9.4 7.7'' 160° 2014 Psc 00h10m02.18s +11°08'44.90"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Hard white A, very faint but definite small point B to south, 4x fainter.
STF3 7.8 9.1 5.0'' 83° 2016 And 00h10m03.18s +46°23'25.10"
Rene Merting
Drachhausen (Germany)
100mm (64x) bei 32x zeigt sich der Stern leicht länglich nach Osten verzogen - bei 64x knappe Trennung, Komponente B ist eine knappe Magnitude schwächer - A weiß, B grau-orange
Uwe Pilz
Leipzig (Germany)
105mm (200x) ../projects/doublestars/uwe_pilz/sketches/191123stf3.jpg
ARY8 AB 8.1 8.6 39.1'' 100° 2015 Cas 00h10m37.25s +58°44'53.60"
Mark McCarthy
Fremont (California/USA)
80mm (13x) There's a chain of doubles going south from Beta Cas, a pretty finder view, like stepping stones. The one closest to Beta Cas is Ary 8, which is actually a triple system of wide pairing.
STF7 8.0 8.5 1.3'' 210° 2017 Cas 00h11m38.91s +55°57'40.90"
Robert Zebahl
Leipzig (Germany)
152mm (210x) Clearly separated with rather close components. Slightly unequal. Pretty double.
STT2 AB-C 6.3 10.4 18.0'' 224° 2015 And 00h13m23.93s +26°59'15.40"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Yellow A, well separated faint B
STF10 AB 8.0 8.6 17.5'' 176° 2015 Cas 00h14m49.33s +62°50'25.50"
Rene Merting
Drachhausen (Germany)
100mm (20x) 20x reichen für die Trennung des schön isoliert im Sternumfeld stehenden Paares - Komponente B im Süden ist eine halbe Magnitude schwächer - bei 32x ein Kuriosum beim Farbkontrast für mich, der zwar sichtbar ist, aber nicht richtig greifbar - das Farbenspiel weiß und weißlich-orange scheint immer zwischen beiden ein wenig hin und her zu wechseln
STF12, 35 Psc 6.1 7.5 11.5'' 148° 2018 Psc 00h14m58.84s +08°49'15.50"
Robert Zebahl
Leipzig (Germany)
70mm (22x) At 22x pretty bright but uneven pair with relatively close components. At 44x the brighter component looked slightly yellowish, the fainter one slightly blueish. The double star could be observed together with STF22 (38 Psc) in the same field of view and stands in nice contrast to it.
Mark McCarthy
Fremont (California/USA)
317mm (553x) Yellow and white, ~1 delta mag, PA to S.
★★ HJ1947 AB 6.2 9.8 9.1'' 75° 2015 And 00h16m21.50s +43°35'42.40"
Rene Merting
Drachhausen (Germany)
100mm (64x) bei 64x ist Komponente B sehr schwach östlich von A erkennbar - großer Helligkeitsunterschied, kaum abschätzbar, vielleicht 3-4 Größenklassen - schönes Doppel-Doppel zusammen mit STT5 nur 28' östlich - beide Paare haben in etwa die gleichen Helligkeiten und den gleichen Abstand, nur die Positionswinkel sind verschieden
STF16 7.7 8.8 5.9'' 41° 2015 Cas 00h16m41.65s +54°39'36.50"
Mark McCarthy
Fremont (California/USA)
317mm (553x) White and blue-white, wide.
BU392 5.7 12.5 19.5'' 71° 2007 Cas 00h16m57.05s +61°31'59.50"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Yellow A star. 12th mag B swims into view with averted vision and seeing, then can hold it direct as a bluish point.
STF22, 38 Psc AB-C 7.1 7.7 4.0'' 235° 2016 Psc 00h17m24.50s +08°52'34.80"
AB-D 7.1 11.5 66.8'' 151° 2005
Robert Zebahl
Leipzig (Germany)
70mm (44x) AB-C: At 44x separated with almost touching diffraction disks and small difference in brightness. At 57x clearly separated, but still quite close together. It stands in beautiful contrast to the nearby double star STF12 (35 Psc).
Mark McCarthy
Fremont (California/USA)
317mm (553x) AB-C: near equal white pair, well split, B ~1/2 delta mag, PA to SW.
ES41 8.0 11.2 6.3'' 220° 2015 Cas 00h18m21.55s +49°30'35.10"
Mark McCarthy
Fremont (California/USA)
317mm (553x) B appeared while putting my eye to the eyepiece -- then disappeared. B needs averted vision to see -- can barely hold it direct vision. Wide, 4 delta mag.
STF24 7.8 8.4 5.1'' 247° 2017 And 00h18m30.59s +26°08'25.10"
Robert Zebahl
Leipzig (Germany)
70mm (66x) Well split with visible difference in brightness.
Mark McCarthy
Fremont (California/USA)
317mm (277x) Near equal white ~5-6"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Near equal brightness white star.
★★ STT5, 26 And 6.1 10.1 6.1'' 240° 2016 And 00h18m42.15s +43°47'28.10"
Rene Merting
Drachhausen (Germany)
100mm (64x) Komponente B erscheint bei 64x knapp westlich von A und ist nur knapp sichtbar - extrem großer Helligkeitsunterschied - schönes Doppel-Doppel zusammen mit HJ1947 nur 28' weiter westlich, beide Paare haben in etwa die gleichen Helligkeiten und den gleichen Abstand, nur die Positionswinkel sind verschieden
KR4, V377 Cas 8.2 9.4 2.2'' 180° 2015 Cas 00h19m14.30s +59°42'17.40"
Rene Merting
Drachhausen (Germany)
100mm (142x) bei 142x ist Komponente B nur in guten Momenten leicht abgesetzt südlich von A erkennbar - irgendwie habe ich mir den Doppelstern bei den Eckdaten leichter vorgestellt
S384 AB 7.0 10.3 104.0'' 22° 2015 And 00h20m00.41s +38°13'38.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Widely separated, yellow-white A, 2 delta-mag fainter B.
AC1 7.3 8.3 1.9'' 290° 2018 And 00h20m54.10s +32°58'40.90"
Robert Zebahl
Leipzig (Germany)
102mm (125x) Very attractive, relatively close with a clearly visible difference in brightness. In the immediate vicinity a brighter star shines in a lovely orange. Very nice contrast! ../projects/doublestars/robert_zebahl/sketches/2019-10-22_ac1.jpg
Uwe Pilz
Leipzig (Germany)
105mm (200x) orange. Leuchtend gelber Stern in 5' Abstand ../projects/doublestars/uwe_pilz/sketches/191122AC1.jpg
Mark McCarthy
Fremont (California/USA)
317mm (553x) Tight yellow-white pair, near equal magnitudes.
Mark McCarthy
Fremont (California/USA)
508mm (205x) Orange star, slightly out of round.
STF26 AB-C 7.5 9.9 13.8'' 114° 2015 Cep 00h21m22.17s +67°00'19.50"
Rene Merting
Drachhausen (Germany)
100mm (32x) bei 32x ein gut getrenntes Pärchen, aber trotzdem eine harte Nuss, weil die ost-südöstliche stehende Komponente C so schwach ist, dass sie nur mit viel Konzentration sichtbar wird bei dieser Vergrößerung - bei 64x dann ist das Erkennen von C leichter
STF27, 42 Psc 6.4 11.2 28.9'' 315° 2015 Psc 00h22m25.48s +13°28'56.90"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Pretty, light orange star with a faint bluish B, widely separated.
Mark McCarthy
Fremont (California/USA)
317mm (553x) Orange, with wide separation blue B, PA to NNW, ~3 delta mag.
STF28 AB 8.3 8.6 33.2'' 224° 2016 And 00h23m53.23s +29°30'09.10"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Near equal yellow A, white B, wide. A 3rd of similar magnitude in the field, could be part of the system? (it is FYM 12.)
FYM12 AC 8.3 8.9 145.9'' 137° 2016 And 00h23m53.23s +29°30'09.10"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Faint star, very widely separated from STF28 but in the same medium power field, forming a triple
STT9 AB 6.9 9.7 2.1'' 51° 2002 Cas 00h26m12.04s +56°46'45.20"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Very close, in diffraction, ~1.5". B is much fainter, ~3 delta mag, a pin prick resolved with seeing.
Mark McCarthy
Fremont (California/USA)
317mm (277x) Interesting multiple system. Faint pairs on either side of a widely separated main pair, all in parallel PAs. (Quintuple. I saw AB through AE. C has a D pair which was not seen.)
STF30 AB 7.0 8.9 13.2'' 316° 2018 Cas 00h27m12.45s +49°59'08.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Obvious wide bright pair.
STT10 AC 6.5 9.5 274.3'' 156° 2015 Psc 00h27m31.02s +16°01'31.70"
Mark McCarthy
Fremont (California/USA)
317mm (553x) White A with ~3 delta magnitude B, very wide separation.
STT10 AB 6.5 10.2 114.2'' 240° 2015 Psc 00h27m31.02s +16°01'31.70"
Mark McCarthy
Fremont (California/USA)
317mm (553x) B a very wide separation to W, 4 delta mag
HJ322, 12 Cet AB 5.9 10.2 12.0'' 202° 2015 Cet 00h30m02.35s -03°57'26.30"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Orange in finder. Bright orange A in scope, with very faint blue B, ~10" to south. Nice!
BU1095, 28 And AB 5.2 13.1 2.0'' 16° 2008 And 00h30m07.34s +29°45'06.10"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Very bright yellow- white A. B is a very faint but consistent point resolved just beyond the first diffraction ring when seeing stills.
BU1094 AB 6.1 8.4 0.3'' 290° 2009 Cas 00h30m19.91s +59°58'39.20"
Mark McCarthy
Fremont (California/USA)
317mm (553x) No deformation noticed
BU394 AB 8.5 8.8 0.8'' 279° 2018 Cas 00h30m45.56s +47°31'47.50"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Very fine, pop split with seeing, near equal.
STF33 8.8 8.9 2.8'' 213° 2017 And 00h30m58.47s +34°05'53.90"
Robert Zebahl
Leipzig (Germany)
70mm (128x) Components equally bright, easy to split.
HJ1981 A-BC 6.9 8.4 78.4'' 89° 2015 Cet 00h30m59.89s -10°05'04.90"
Mark McCarthy
Fremont (California/USA)
317mm (277x) White pair, PA to east, ~2 delta mag.
HJ5451 6.0 9.3 55.3'' 86° 2012 And 00h31m25.64s +33°34'53.90"
Uwe Pilz
Leipzig (Germany)
105mm (88x) gelbweiß, schon bei 21x erkennbar ../projects/doublestars/uwe_pilz/sketches/191122h5451.jpg
Mark McCarthy
Fremont (California/USA)
317mm (553x) Orange, pretty bright star, bluish / fainter widely separated B
STT12, lam Cas 5.3 5.6 0.2'' 210° 2010 Cas 00h31m46.32s +54°31'20.30"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Lambda Cas: Maybe out of round? Marginal
BU1227 AB 7.2 10.6 2.8'' 193° 2015 Cas 00h32m21.78s +58°20'19.10"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Yellow and 3 delta mag B, orange, comes into view direct vision but only with seeing, 2-3".
BU1227 AC 7.2 11.8 22.4'' 80° 2015 Cas 00h32m21.78s +58°20'19.10"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Faint star, 1 delta mag fainter than B, widely separated, PA 90 degrees from AD
BU1227 AD 7.2 11.7 30.9'' 112° 2015 Cas 00h32m21.78s +58°20'19.10"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Faint star, 1 delta mag fainter than B, more widely separated than C, at 90 degrees PA from C
STF39 AB-C 7.1 8.7 20.1'' 45° 2018 Cet 00h34m29.79s -04°32'47.50"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Yellow and blue pair, PA to NE. Pretty.
STF40 AB 6.7 8.5 11.8'' 313° 2018 And 00h35m09.63s +36°49'56.20"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Pretty yellowish star with fainter, widely separated B.
H5 17, pi And AB 4.4 7.1 35.8'' 174° 2018 And 00h36m52.84s +33°43'09.70"
Uwe Pilz
Leipzig (Germany)
105mm (88x) (HV 17) blauweiß und violett-grau ../projects/doublestars/uwe_pilz/sketches/191122HV17.jpg
STF45 AB 6.8 10.1 19.1'' 91° 2015 Cas 00h38m41.60s +46°57'24.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Easy wide orange and blue, 3 delta mag.
STT16 5.6 10.5 12.3'' 22° 2015 Cas 00h39m09.89s +49°21'16.50"
Mark McCarthy
Fremont (California/USA)
317mm (553x) wide and faint.
HJ1986 AB 8.0 8.5 40.5'' 69° 2017 Cep 00h39m35.16s +84°44'52.00"
Rene Merting
Drachhausen (Germany)
100mm (32x) bei 32x sehr weit getrenntes Pärchen - beide Komponenten ähnlich hell, Komponente A im Südwesten weiß, B eine halbe Größenklasse schwächer und mehr gräulich - zurück auf 20x sind beide weiterhin weit getrennt erkennbar
STF46, 55 Psc 5.6 8.5 6.6'' 192° 2014 Psc 00h39m55.57s +21°26'18.60"
Robert Zebahl
Leipzig (Germany)
70mm (44x) Clearly separated, but large difference in brightness. The companion appeared only as a tiny, faint star. The primary component sparkled in light orange.
Mark McCarthy
Fremont (California/USA)
317mm (553x) Orange with wide separated blue B.
STF47 AB 7.2 8.8 16.6'' 205° 2015 And 00h40m19.78s +24°03'14.00"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Easy, a triple. Orange A star with 1.5 delta mag. B, 10". Third star another 1 delta mag, further out in a similar PA. Third star is BU 1348
BU1348 AC 7.2 11.1 46.5'' 233° 2015 And 00h40m19.78s +24°03'14.00"
Mark McCarthy
Fremont (California/USA)
317mm (553x) The third star out, paired with both A and B of STF 47 -- pretty weird orbit, trying to picture it
STF48 AB 7.8 8.1 5.5'' 334° 2016 Cas 00h42m40.01s +71°21'57.30"
Robert Zebahl
Leipzig (Germany)
70mm (57x) At 22x almost split, clearly elongated with constriction. At 31x split, but very close together, almost equally bright. At 57x easily separable with very small difference in brightness. The fainter companion appeared slightly orange.
HJ1995 6.7 11.3 42.3'' 128° 2015 Cet 00h42m50.76s -09°55'17.90"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Fairly faint B, wide and just above averted vision threshold. PA to east.
STF55 8.3 8.9 2.3'' 331° 2016 And 00h44m22.95s +33°37'05.60"
Robert Zebahl
Leipzig (Germany)
70mm (128x) Well split with noticeable difference in brightness.
STFA1 AB 7.2 7.4 48.0'' 46° 2017 And 00h46m24.34s +30°56'33.50"
Robert Zebahl
Leipzig (Germany)
8x40 Large distance with visible difference in brightness. I used a tripod.
Uwe Pilz
Leipzig (Germany)
105mm (26x) zweiter Doppelstern im Bild (ohne Bezeichnung). Gelb und orange. ../projects/doublestars/uwe_pilz/sketches/190922STTI1.jpg
Mark McCarthy
Fremont (California/USA)
317mm (277x) equal magnitude orange pair, wide.
H5 82 AB 8.0 8.3 57.2'' 75° 2017 Cas 00h47m24.62s +51°05'45.90"
Robert Zebahl
Leipzig (Germany)
70mm (26x) Almost equally bright components with large angular distance.
STF59 AB 7.2 8.1 2.3'' 148° 2016 Cas 00h47m59.03s +51°26'41.20"
Robert Zebahl
Leipzig (Germany)
70mm (100x) At 57x elongated, at 100x barely, at 128x clearly split with noticeable difference in brightness.
HO306 9.6 9.9 1.5'' 159° 2016 And 00h48m06.71s +25°32'54.30"
Robert Zebahl
Leipzig (Germany)
102mm (160x) Pretty faint and tight with visible difference in brightness.
★★★ eta Cas, 24 Cas STF60 AB 3.5 7.4 13.4'' 325° 2016 Cas 00h49m06.29s +57°48'54.70"
STF60 AC 3.5 11.4 225.0'' 260° 2000
STF60 AD 3.5 12.8 189.4'' 354° 2011
STF60 AE 3.5 10.2 75.6'' 126° 2015
STF60 AF 3.5 11.5 378.3'' 276° 2000
STF60 AG 3.5 9.5 419.7'' 259° 2012
STF60 AH 3.5 8.4 701.1'' 355° 2012
SMR2 AI 3.5 11.6 90.3'' 73° 2012
SMR2 AJ 3.5 12.3 237.1'' 262° 2012
Robert Zebahl
Leipzig (Germany)
70mm (57x) AB: Easy to split with big difference in brightness. Fainter component appeared deep orange to slightly red colored, brighter component tends to be more slightly yellowish.
Rene Merting
Drachhausen (Germany)
100mm (32x) AB: bei 32x ist Komponente A so hell, dass B trotz des augenscheinlich großen Abstandes von 13,38" nur knapp getrennt zu sehen ist - Komponente A ist gleißend hell-gelb, B dürfte mindestens 3 Größenklassen schwächer sein und wirkt dadurch dumpfer
Uwe Pilz
Leipzig (Germany)
105mm (53x) AB: leicht
Uwe Pilz
Leipzig (Germany)
105mm (288x) kein Sternentstehungsgebiet! ../projects/doublestars/uwe_pilz/sketches/etaCas.jpg
Mark McCarthy
Fremont (California/USA)
317mm (553x) AB: Nice yellow pair. A is a red tainted yellow, B is cleaner.
Rene Merting
Drachhausen (Germany)
320mm (72x) AB: bei 72x ein echt fetter Farbkontrast, Komponente A ist gleißend hell und zitronengelb, B zeigt sich knallig orange - beide Sterne sind gut getrennt voneinander zu beobachten - sehenswert
65 Psc, STF61 6.3 6.3 4.3'' 116° 2018 Psc 00h49m52.88s +27°42'38.90"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Bright orange pair, 6-7"
BU232 AB 8.5 8.8 0.9'' 256° 2018 Cas 00h50m25.10s +50°37'49.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Neat near equal orange and yellow. Split with seeing, 1".
BU232 AB-C 8.5 10.1 24.5'' 300° 2018 Cas 00h50m25.10s +50°37'49.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) C 2 delta mag fainter than B, about 25" separated, is the +1 star with BU232AB
BU781 8.4 9.3 1.0'' 22° 2017 Cas 00h51m36.19s +68°59'14.00"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Very fine faint pair, need to wait for seeing. 1", 1 delta mag.
A812 7.7 11.1 1.8'' 327° 2017 Cas 00h51m47.06s +48°03'23.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Orange star, suspect a brightening in diffraction when seeing stills, marginal.
STF65 8.0 8.0 3.2'' 220° 2017 Cas 00h52m45.61s +68°51'59.30"
Robert Zebahl
Leipzig (Germany)
70mm (57x) Clearly split with equally bright components.
Mark McCarthy
Fremont (California/USA)
317mm (553x) Equal pair, white-yellow. Wide and pretty bright
BU1 AC 8.6 8.9 3.9'' 134° 2017 Cas 00h52m49.22s +56°37'39.50"
AD 8.6 9.7 9.0'' 194° 2017
Robert Zebahl
Leipzig (Germany)
70mm (57x) AC: Easy to split with little difference in brightness.
Robert Zebahl
Leipzig (Germany)
70mm (57x) AD: Relatively large angular distance with obviously fainter component.
★★ BU1 AB 8.6 9.3 1.5'' 83° 2016 Cas 00h52m49.22s +56°37'39.50"
Mark McCarthy
Fremont (California/USA)
317mm (553x) In the finder there is a right triangle of equal stars, the foot star has a very faint, 2-3 delta mag star very close ~1", faint split. Some fainter stars wreathed about it. AC and AD appear to be the other triangle stars. 17 stars visible in the system, which I suppose ought to be called an open cluster
BU497 AB 4.8 9.8 146.0'' 170° 2015 Cas 00h53m04.28s +61°07'24.80"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Super wide and faint.
STF72 8.4 9.3 23.3'' 173° 2015 And 00h54m37.50s +39°10'09.70"
Robert Zebahl
Leipzig (Germany)
152mm (22x) Easy with moderate difference in brightness. Both components appeared orange, the fainter one slightly more intense. The color was well visible at 69x.
STF73, 36 And AB 6.1 6.5 1.1'' 334° 2018 And 00h54m58.02s +23°37'42.40"
Robert Zebahl
Leipzig (Germany)
102mm (125x) Clearly visible as figure '8' with a rather small difference in brightness.
Uwe Pilz
Leipzig (Germany)
105mm (198x) ganz einfach
Robert Zebahl
Leipzig (Germany)
152mm (300x) Split with little gap in between and little difference in brightness. Seeing was not really good.
Frederik Wanink
Itterbeck (Germany)
254mm (640x) hell ../projects/doublestars/frederik_wanink/sketches/36And.jpg
BU1098, ups 1 Cas AB 5.0 12.5 18.0'' 63° 2015 Cas 00h55m00.19s +58°58'22.10"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Bright yellow and very much fainter 4 delta mag B
ES940 AB 7.3 10.1 61.7'' 359° 2015 Cas 00h57m20.19s +52°14'23.70"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Orange A with very faint pin prick B, with seeing, 3 delta mag, wide.
164 And, STF79 6.0 6.8 7.9'' 195° 2018 And 01h00m03.56s +44°42'47.70"
Robert Zebahl
Leipzig (Germany)
55mm (25x) Beautiful double star, relatively tight with visible difference in brightness.
ES45 6.6 10.8 7.9'' 244° 2015 Cas 01h01m27.04s +49°32'39.10"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Orange-yellow A, need averted vision to flash B out, barely hold with direct vision.
A2901 7.1 7.8 0.4'' 64° 2018 Cas 01h01m30.15s +69°21'30.70"
Mark McCarthy
Fremont (California/USA)
317mm (885x) Elongated to notched with seeing
BU396 6.1 8.6 1.3'' 67° 2007 Cas 01h03m37.01s +61°04'29.40"
Mark McCarthy
Fremont (California/USA)
317mm (340x) Bright white and 3-4 delta mag blue, ~2", well split.
Mark McCarthy
Fremont (California/USA)
317mm (553x) Suspected in 277x, confirmed split with 553x, Small much fainter blue B in A's diffraction -- yellow-white, ~1", ~3 delta mag.
STF84, 26 Cet AB 6.1 9.5 16.0'' 253° 2015 Cet 01h03m49.02s +01°22'00.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Yellow A and bluish B. PA west, 2 delta mag. Wide separation.
Mark McCarthy
Fremont (California/USA)
317mm (553x) Pale yellow and almost dark purple B, 2 delta mag, ~15"
★★ STF88, psi 1 Psc AB 5.3 5.5 29.7'' 160° 2018 Psc 01h05m40.93s +21°28'23.60"
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.
STF90, 77 Psc AB 6.4 7.3 33.0'' 84° 2018 Psc 01h05m49.22s +04°54'31.20"
Christopher Hay
Seeheim (Germany)
15x45 Widely split. Very reminiscent in PA and delta-Mag of the pair Zeta Psc (STF100) 3° to the north, but is wider, weaker and thus overall more pleasant in this instrument.
Mark McCarthy
Fremont (California/USA)
317mm (553x) Very easy white-yellow pair, ~0.5 delta mag, wide PA to the east.
S393, sig 2 Psc AB 6.4 10.6 60.0'' 295° 2014 Psc 01h06m11.20s +32°10'53.30"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Orange-yellow A, 2 delta mag very wide B
STTA11 AB-C 7.6 8.8 59.3'' 164° 2014 And 01h07m09.16s +38°39'01.70"
Robert Zebahl
Leipzig (Germany)
152mm (22x) Pretty wide pair with moderate difference in brightness. At 69x the primary component appeared slightly orange, BC rather grayish.
STF91 7.4 8.6 4.3'' 315° 2018 Cet 01h07m10.99s -01°43'55.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Orange-yellow pair, ~2 delta mag, ~4", PA to N.
Mark McCarthy
Fremont (California/USA)
317mm (553x) Pale yellow and pale orange pair, wide separation, PA to the WNW.
BAR1, bet And AC 2.2 13.0 108.4'' 276° 2015 And 01h09m43.92s +35°37'14.00"
Mark McCarthy
Fremont (California/USA)
317mm (553x) EE Barnard recorded eight faint stars, ranging from 10.7 to 14.4 mangnitude, surrounding Beta Andromadae. As a bonus, galaxy NGC 404 "Mirach's Ghost" is in the same near area. I found seven using magnifications of 201x to 553x, moving Beta in and out of the field.
BU235 Aa-Ab 7.5 7.8 0.8'' 143° 2018 Cas 01h10m34.31s +51°00'47.80"
Frederik Wanink
Itterbeck (Germany)
254mm (640x) Mehrfachsystem ../projects/doublestars/frederik_wanink/sketches/BU235.jpg
HJ634 7.3 12.7 56.3'' 236° 2015 Psc 01h10m54.28s +09°33'50.00"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Yellow-orange with faint wide B to west, ~3 delta magnitude.
STT553, the Cas AB 4.3 11.3 126.4'' 143° 2012 Cas 01h11m06.16s +55°08'59.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Super wide and faint.
HO215, 45 And 6.6 6.6 0.1'' 225° 2006 And 01h11m10.29s +37°43'26.90"
Mark McCarthy
Fremont (California/USA)
317mm (553x) 45 And: Disk seems not round but far for me to claim it, marginal observation
STF96 7.9 8.9 0.9'' 287° 2018 Cas 01h12m41.24s +65°00'32.90"
Frederik Wanink
Itterbeck (Germany)
254mm (640x) scheint enger als 0,9" ../projects/doublestars/frederik_wanink/sketches/STF96.jpg
Mark McCarthy
Fremont (California/USA)
317mm (553x) Mostly notched but moments of hairline split with seeing 1.5 delta mag. Very tough! Yellow-orange stars.
STF98 AB 7.0 8.1 19.6'' 249° 2016 Psc 01h12m52.98s +32°04'31.70"
Robert Zebahl
Leipzig (Germany)
70mm (22x) Easy to separate at 22x, clear difference in brightness at moderate distance. In terms of color, the two components appeared slightly different. At 44x A appeared white-yellowish, B slightly reddish.
Uwe Pilz
Leipzig (Germany)
105mm (288x) nicht einfach
Mark McCarthy
Fremont (California/USA)
317mm (277x) Yellow-orange and 1 delta mag B. Could be a multiple system: some stars on other side of A making a triangle, 2-3 times fainter. (4 stars in system).
Mark McCarthy
Fremont (California/USA)
317mm (553x) 1 delta mag, wide separation. White A, blue B.
STT26 AB 6.3 10.5 10.7'' 258° 2015 Psc 01h12m59.47s +30°03'51.20"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Orange with much fainter B ~10" to south.
BU258 AB 6.5 8.8 1.6'' 263° 2015 Cas 01h13m09.82s +61°42'22.30"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Barely split at 340x, a brightening in the first diffraction. Wanted more certainty so went to 553x, clean split, 2" 3 detla mag.
Mark McCarthy
Fremont (California/USA)
317mm (553x) White pair, B resolves with seeing, ~2", 2-3 delta mag.
zeta Psc, 86 Psc, STF100 AB 5.2 6.3 22.8'' 64° 2018 Psc 01h13m43.80s +07°34'31.80"
Christopher Hay
Seeheim (Germany)
15x45 Cleanly split. Western component distinctly brighter, no colour impression.
Robert Zebahl
Leipzig (Germany)
200mm (37x) Visually evident as double star and easy to find. Well split with slight difference in brightness.
HJ636 7.4 11.8 20.5'' 288° 2014 Psc 01h14m20.83s +30°32'31.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Very faint B ~20" out but not difficult. ~4 delta mag.
STFA3, 37 Cet AB 5.2 7.8 47.1'' 331° 2018 Cet 01h14m24.04s -07°55'22.20"
Mark McCarthy
Fremont (California/USA)
317mm (553x) 37 Cet: Both orange, B 3 delta mag, so more intense orange. Wide separation PA to the north.
STF104 8.0 9.8 13.4'' 323° 2015 And 01h16m57.09s +38°27'38.70"
Robert Zebahl
Leipzig (Germany)
152mm (69x) Easy, rather close pair, but with a clear difference in brightness. Primary component appeared slightly orange, companion slightly gray-blueish.
STF108 6.5 9.6 6.4'' 62° 2017 And 01h18m47.00s +37°23'10.60"
Robert Zebahl
Leipzig (Germany)
120mm (75x) Easily split with big difference in brightness.
Robert Zebahl
Leipzig (Germany)
152mm (69x) Easy and pretty uneven. Primary component appeared slightly yellowish.
STF105 AB 8.8 9.8 3.0'' 185° 2016 Cas 01h18m57.50s +66°09'28.00"
Robert Zebahl
Leipzig (Germany)
70mm (100x) Clearly split with visible difference in brightness.
KR11 9.6 9.7 2.0'' 59° 2017 Cas 01h19m40.95s +61°34'44.40"
Robert Zebahl
Leipzig (Germany)
152mm (129x) Rather faint double star. Easily split with equally bright components.
STF113, 42 Cet A-BC 6.5 7.0 1.6'' 22° 2018 Cet 01h19m48.30s -00°30'32.50"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Pale orange and slight blue, PA to NW, ~1 delta mag. 2". Pretty.
Mark McCarthy
Fremont (California/USA)
317mm (553x) Gold and blue, pretty. 2" PA to north.
phi Cas, 34 Cas, H 3 23 AB 5.1 12.3 48.4'' 209° 2015 Cas 01h20m04.91s +58°13'53.80"
AC 5.1 7.0 132.8'' 235° 2014
AD 5.1 10.3 179.0'' 288° 2015
AE 5.1 10.4 170.4'' 239° 2015
Uwe Pilz
Leipzig (Germany)
105mm (288x) AB: kein Dreifachstern erkennbar, obwohl so ausgewiesen
S397, 35 Cas 6.3 8.6 57.4'' 342° 2018 Cas 01h21m05.27s +64°39'29.30"
Rene Merting
Drachhausen (Germany)
16x70 ein weit getrenntes Pärchen mit einem schönen Farbkontrast - Komponente A im Süden wirkt blau-weiß, B ist gut 1,5 Größenklassen schwächer und wirkt gräulich
Rene Merting
Drachhausen (Germany)
4mm (20x) bei 32x ein schönes helles Sternpaar, weit getrennt - auffälliger Farbkontrast, A ist reinweiß, B eher schmutzig orange-braun - zurück auf 20x ist die Trennung noch immer sehr deutlich
STF115 AB 7.1 7.3 0.5'' 160° 2018 Cas 01h23m21.27s +58°08'35.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Peanut, near equal. in nearly the same FOV with Detla Cas, V 465 pretty orange star, and NGC 457, a loose moderately rich open cluster
ES1712 AB 7.9 9.3 47.2'' 2015 Cas 01h24m20.10s +58°56'47.20"
Rene Merting
Drachhausen (Germany)
16x70 ein gut isolierter Doppelstern, da kaum weitere Sterne im unmittelbaren Umfeld zu erkennen sind - Komponente B ist schwach und steht weit getrennt im Norden von A - leicht, aber nicht sehr reizvoll für Ferngläser
Rene Merting
Drachhausen (Germany)
100mm (20x) bei 32x ein weit getrenntes Pärchen, aber der schöne Farbkontrast entschädigt - Komponente A im Süden ist weiß und doppelt so hell wie Komponente B, die leicht bräunlich erscheint - zurück auf 20x ist der Doppelstern noch immer weit getrennt und einfach sichtbar
STTA17, BKO10 STTA17 AB 8.0 9.8 35.4'' 101° 2015 And 01h24m30.85s +39°01'30.30"
STTA17 AC 8.0 8.5 134.9'' 347° 2014
STTA17 CD 8.5 9.8 68.9'' 279° 2015
STTA17 CE 8.5 13.3 81.2'' 14° 2015
BKO10 AF 8.0 11.2 141.7'' 270° 2015
Christopher Hay
Seeheim (Germany)
18x80 The group of stars strikes the eye while sweeping from Mirach to Tau/Upsilon TRI. First thought I'd found an open cluster. Two pairs with practically opposite PAs. Southern pair AB much closer than northern CD, but brightnesses within the pairs very similar. A nice double-double.
Robert Zebahl
Leipzig (Germany)
152mm (22x) The components A-D and F easily visible as a rather conspicuous group with comparatively large distances. I didn't pay attention to the component E. No brighter stars in the immediate vicinity. The pair AB and CD are very similar; CD a bit wider with opposite position angle. Very nice multiple star also for smaller telescopes.
H5 83, psi Cas AC 4.7 9.2 20.3'' 128° 2007 Cas 01h25m55.90s +68°07'47.80"
Rene Merting
Drachhausen (Germany)
100mm (20x) bei 32x zeigt sich A wunderschön Butter-gelb, C mit ordentlich Abstand im Südosten ist ganz schwach und leicht bräunlich - Helligkeitsunterschied mindestens 4 Größenklassen - ein sehr ungleiches Paar
STF122 6.7 9.5 5.7'' 329° 2013 Psc 01h26m53.55s +03°32'08.30"
Mark McCarthy
Fremont (California/USA)
317mm (553x) pretty white and orange, PA to N, ~3 delta mag, 6-8"
AC14 8.3 8.9 0.7'' 93° 2018 And 01h28m19.28s +42°46'56.00"
Robert Zebahl
Leipzig (Germany)
152mm (300x) Immediately visible as a double star, almost separated with little difference in brightness.
S398 AB 6.3 8.0 69.0'' 100° 2015 Psc 01h28m22.92s +07°57'40.90"
Mark McCarthy
Fremont (California/USA)
317mm (553x) orange with 1 delta mag white to east.
ES4 8.1 9.1 2.8'' 101° 2016 And 01h31m05.02s +43°37'14.60"
Robert Zebahl
Leipzig (Germany)
70mm (128x) Not split. I probably didn't recognised the fainter component. The angular distance shouldn't be a problem.
Mark McCarthy
Fremont (California/USA)
508mm (333x) Split with 333x, ~1.5" 2 delta mag.
STF128 8.1 10.4 11.4'' 310° 2015 Cas 01h31m41.16s +61°02'34.30"
Rene Merting
Drachhausen (Germany)
100mm (64x) erst bei 64x offenbarte sich mir der Begleiter, das lag nicht am Abstand, sondern an der Schwäche von Komponente B - bei dieser Vergrößerung sind beide Sterne nämlich schon ordentlich getrennt - Komponente B im Nordwesten ist 2 bis 2,5 Größenklassen schwächer
Uwe Pilz
Leipzig (Germany)
105mm (288x) einfach
STT31 6.5 10.6 4.0'' 78° 1991 Psc 01h33m18.28s +08°12'31.50"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Orange with very faint glow, AV only, to east. ~4-5", 3 delta mag.
STF136, 100 Psc AB 7.3 8.3 15.7'' 77° 2016 Psc 01h34m51.61s +12°33'31.20"
AC 7.3 13.6 76.9'' 312° 2015
AD 7.3 11.6 124.5'' 2015
Robert Zebahl
Leipzig (Germany)
70mm (22x) AB: At 22x easy to separate with well visible difference in brightness. A difference in color is visible, but the assignment of colors was difficult. At 44x A appeared slightly orange, B rather blueish.
STF138 AB 7.5 7.6 1.7'' 60° 2018 Psc 01h36m02.86s +07°38'42.90"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Tight near equal pair, yellow-white, 2" or so.
STT33 AB 7.3 9.0 26.9'' 77° 2015 Cas 01h37m22.87s +58°38'14.70"
Rene Merting
Drachhausen (Germany)
16x70 ein isoliert stehendes gut getrenntes Pärchen mit schönem Farbkontrast - Komponente B im Osten wirkt rot-braun, weil die weiße Komponente A gut 1,5 Größenklassen heller ist
Rene Merting
Drachhausen (Germany)
100mm (20x) bei 32x stehen beide Komponenten weit auseinander - Komponente B im Osten ist gut 1.5 Größenklassen schwächer als A - Farbkontrast rein weiß (A) vs. orange-braun (B) - südöstlich von A in 4-facher Entfernung AB steht ein weiterer schwacher Stern (Komponente C mit 10.29 mag/ AC mit eigener Bezeichnung: DOB 2) - zurück auf 20x bilden A und B ein schönes enges Paar, Komponente C ist auch noch knapp erkennbar
Mark McCarthy
Fremont (California/USA)
317mm (340x) Pretty yellow-white and red-orange pair, wide, 1.5-2 delta mag. Nearby X Cas a very pretty red.
DOB2 AC 7.3 10.3 107.0'' 109° 2015 Cas 01h37m22.87s +58°38'14.70"
Rene Merting
Drachhausen (Germany)
100mm (32x) Komponente C als Anhängsel von STT33 - Komponente C ist bei 32x sehr weit südöstlich von A erkennbar, vierfacher Abstand AB (STT33) - zurück auf 20x sind alle drei Komponenten ebenfalls noch zu erkennen
STF141 8.3 8.6 1.7'' 303° 2017 And 01h40m03.42s +38°58'10.70"
Robert Zebahl
Leipzig (Germany)
102mm (125x) Clearly separated, but still very close. Slightly uneven.
HJ1088 AB 6.3 9.8 19.5'' 168° 2015 Cas 01h42m17.70s +58°37'39.80"
Rene Merting
Drachhausen (Germany)
100mm (32x) erst bei 32x zeigt sich der schwache Begleiter weit getrennt südlich von A - Größenklassenunterschied enorm bzw. nicht abschätzbar - Komponente A ist weiß mit einem Stich ins Gelbe (ich kann mich aber auch täuschen), B hat keine Farbe, wohl zu schwach auf der Brust - ein Doppelstern für Puristen
BU1103, 44 Cas AB 5.8 12.1 1.6'' 2005 Cas 01h43m19.75s +60°33'04.80"
Mark McCarthy
Fremont (California/USA)
317mm (553x) 44 Cas. Extremely fine, extremely faint spec consistently in one spot in the diffraction, 1", when seeing perfects. Need a slight averted vision to see it.
STF155 AB 7.9 8.0 4.9'' 325° 2018 Psc 01h44m15.19s +09°29'02.70"
Robert Zebahl
Leipzig (Germany)
70mm (44x) Lovely embedded in a small group of stars. The components showed a small difference in brightness and were very close together. ../projects/doublestars/robert_zebahl/sketches/2019-10-24_stf155.jpg
Mark McCarthy
Fremont (California/USA)
317mm (553x) Nice near equal brightness white pair, ~5"
ARN55, V773 Cas AD 6.3 9.9 160.5'' 45° 2003 Cas 01h44m17.96s +57°32'11.80"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Very wide separation 1 delta mag. physical double. This is the AD pair of a more complicated system. AB = V773 Cas = BU 870 which is 6.29/8.68 0.3", AC = GUI 2, 6.29/16.00 16.8".
Mark McCarthy
Fremont (California/USA)
317mm (553x) Picking up a pinpoint in A's diffraction, very faint with seeing, <1", 3-4 delta mag, white. Marginal.
STF149 8.2 9.3 1.4'' 81° 2015 And 01h44m30.83s +39°57'31.10"
Robert Zebahl
Leipzig (Germany)
102mm (160x) At 125x almost split, noticeably uneven. At 160x split, but pretty tight.
STF151 10.6 11.0 7.2'' 39° 2016 Cas 01h45m59.32s +61°12'45.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Equal, fairly faint but by no means the faintest in a very rich field. Visible in 80mm finder.
STF152 9.0 11.2 9.4'' 106° 2015 Cas 01h46m04.90s +61°13'41.80"
Mark McCarthy
Fremont (California/USA)
317mm (553x) A about 11th mag and B wide separation 1.5 delta mag. not physical
STF153 9.4 10.4 7.7'' 69° 2015 Cas 01h46m34.53s +61°15'45.00"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Well separated ~10", 1 delta mag pair
STF162 AB 6.5 7.2 2.0'' 199° 2018 Per 01h49m15.47s +47°53'47.10"
Robert Zebahl
Leipzig (Germany)
70mm (100x) At 100x partly split, otherwise '8'-shaped. At 128x clearly split. Difference in brightness noticeable.
STF162 AC 6.5 9.2 20.3'' 178° 2018 Per 01h49m15.47s +47°53'47.10"
Rene Merting
Drachhausen (Germany)
16x70 ein schwieriges Paar aufgrund des Helligkeitsunterschiedes - mit etwas Geduld offenbart sich Komponente C knapp südlich von A sehr dicht an dessen hellem Glanz - die Trennung ist nur in ruhigen Momenten kurzzeitig sichtbar
1 Ari, STF174 6.3 7.2 2.9'' 165° 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.
Stefan Loibl
Rosenheim (Germany)
102mm (102x) slight color difference, A orange, B blueish
Robert Zebahl
Leipzig (Germany)
200mm (100x) SQM-L 20.8: Nice double star with big difference in brightness.
Mark McCarthy
Fremont (California/USA)
317mm (553x) Pretty orange and blue pair, ~2 delta mag, ~2".
STF175 AB 9.0 9.4 28.6'' 2018 Ari 01h51m01.96s +21°06'56.10"
Mark McCarthy
Fremont (California/USA)
317mm (340x) Near equal white, fairly wide separation
STF163 AB 6.8 9.1 34.5'' 38° 2018 Cas 01h51m16.93s +64°51'17.90"
Rene Merting
Drachhausen (Germany)
16x70 ein ordentlich getrenntes Pärchen - Komponente A im Südwesten strahlt gelblich, B im Nordosten ist schwach erkennbar, aber nicht schwer
Robert Zebahl
Leipzig (Germany)
70mm (20x) Easily split at 20x. From 44x the brighter component was orange colored, the fainter one tends to be more bluish.
Mark McCarthy
Fremont (California/USA)
317mm (553x) Pretty orange star in the 80mm finder. Wide separated blue B, 2 delta mag.
STF178 8.2 8.2 3.0'' 206° 2016 Ari 01h52m02.54s +10°48'38.10"
Robert Zebahl
Leipzig (Germany)
63mm (67x) Clearly split, tight, apparently equally bright components.
Robert Zebahl
Leipzig (Germany)
70mm (100x) Split with equally bright components.
STF179 7.6 8.1 3.5'' 161° 2016 And 01h53m10.72s +37°19'16.30"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Near equal magnitude, 4", nice orange-yellow color.
gamma Ari, STF180 AB 4.5 4.6 7.4'' 2018 Ari 01h53m31.76s +19°17'38.60"
Stefan Loibl
Rosenheim (Germany)
102mm (41x) easily split at 41x, no color difference, nice view with 8m star HD11557 in the same FOV
Robert Zebahl
Leipzig (Germany)
200mm (80x) Nice, obvious double star. Both components have similar brightness and appeared white.
Mark McCarthy
Fremont (California/USA)
317mm (277x) Gamma Ari. Equal yellow-white, wide, bright.
Mark McCarthy
Fremont (California/USA)
317mm (553x) Gamma Aries. Nice near equal magnitude pair, white, ~4".
STF170 7.5 8.2 3.2'' 244° 2016 Cas 01h55m27.35s +76°13'28.40"
Robert Zebahl
Leipzig (Germany)
70mm (57x) At 57x barely split with noticeable difference in brightness. At 128x easy split.
STF182 AB 8.3 8.3 3.6'' 125° 2016 Cas 01h56m23.56s +61°16'52.00"
Robert Zebahl
Leipzig (Germany)
70mm (57x) At 44x almost split. At 57x equally bright components visible.
H5 12, 9 Ari, lambda Ari AB 4.8 6.7 37.3'' 48° 2018 Ari 01h57m55.71s +23°35'45.80"
Robert Zebahl
Leipzig (Germany)
70mm (15x) Easy to split with large distance and difference in brightness.
Stefan Loibl
Rosenheim (Germany)
102mm (41x) easily split, both components white, no color difference
Uwe Pilz
Leipzig (Germany)
105mm (200x) der helle Stern ist blauweiß ../projects/doublestars/uwe_pilz/sketches/191025_LamAri.jpg
S404 AB 7.6 9.7 29.2'' 84° 2015 And 01h58m04.61s +41°23'09.50"
Rene Merting
Drachhausen (Germany)
16x70 der Doppelstern liegt südwestlich einer auffälligen Sternkette, die sich von Südosten nach Nordwesten zieht - mit etwas Geduld ist Komponente B knapp östlich von A zu erkennen - A ist nicht die hellste Leuchte, B noch deutlich schwächer
FRK3 6.7 9.7 44.3'' 224° 2015 Cas 01h58m18.54s +59°37'33.40"
Rene Merting
Drachhausen (Germany)
16x70 ein ungleiches Paar - Komponente B steht gut getrennt südwestlich und ist mehr als 2 Größenklassen schwächer und wirkt dadurch grau-braun im Vergleich zu A
Rene Merting
Drachhausen (Germany)
100mm (20x) bei 32x schon weit auseinander - Komponente A ist schneeweiß, die viel schwächere Komponente B im Südwesten eher braun-grau - zurück auf 20x zeigt sich ein immer noch ordentlich getrenntes Pärchen, der Farbkontrast ist jetzt nicht mehr ganz so auffallend
STF194 7.6 9.5 1.3'' 279° 2015 Ari 01h59m18.95s +24°49'44.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Fairly faint 1.5" near equal magnitude, maybe 1/2 delta mag. Slightly orange, pretty.
BU513, 48 Cas AB 4.7 6.7 0.6'' 320° 2013 Cas 02h01m57.55s +70°54'25.40"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Searched around the swollen, shimmering bright A star disk and felt there was a faint close B trying to resolve in the first diffraction at 553x. Apodizing mask cleaned up the image but no B resolved
alpha Psc, 113 Psc, Alrischa, Kaitain, Okda STF202 AB 4.1 5.2 1.8'' 264° 2017 Psc 02h02m02.80s +02°45'49.40"
PWL1 AC 4.1 8.2 404.9'' 63° 2006
PWL1 AD 4.1 8.6 434.5'' 335° 2006
Uwe Pilz
Leipzig (Germany)
105mm (88x) AB: der hellere Stern ist weiß ../projects/doublestars/uwe_pilz/sketches/191129alpPsc.jpg
STF208, 10 Ari AB 5.8 7.9 1.4'' 344° 2017 Ari 02h03m39.26s +25°56'07.60"
Uwe Pilz
Leipzig (Germany)
105mm (200x) helle Stelle im ersten Ring ../projects/doublestars/uwe_pilz/sketches/10Ari.jpg
Mark McCarthy
Fremont (California/USA)
317mm (553x) ~2 delta mag, ~1" very nice. ~1 disk split. Nice!
STF205, gamma And, 57 And, Alamak A-BC 2.3 5.0 9.4'' 63° 2016 And 02h03m53.92s +42°19'47.50"
Robert Zebahl
Leipzig (Germany)
63mm (42x) Easy to split with quite large difference in brightness.
Uwe Pilz
Leipzig (Germany)
105mm (52x) einfach
Robert Zebahl
Leipzig (Germany)
152mm (100x) Very easy. A: orange, BC: rather white.
Rene Merting
Drachhausen (Germany)
320mm (45x) 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
STF212 8.3 8.7 1.9'' 162° 2018 Ari 02h06m14.96s +25°06'31.00"
Robert Zebahl
Leipzig (Germany)
63mm (168x) Not split, but partially seen as an '8'. Overall the double star appeared rather faint and both components seemed to be similarly bright.
Robert Zebahl
Leipzig (Germany)
70mm (128x) Barely split with slight difference in brightness.
Mark McCarthy
Fremont (California/USA)
317mm (170x) A star is deformed shaped, could be very close near equal pair but seeing is poor and cannot resolve
STF221 AB 8.1 9.4 8.5'' 145° 2015 Ari 02h09m42.76s +20°20'53.30"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Orange and blue pair, 2 delta mag., ~8" Pretty.
STF219 8.0 8.9 11.7'' 186° 2015 Tri 02h10m16.10s +33°21'55.20"
Robert Zebahl
Leipzig (Germany)
55mm (25x) Well separated with noticeable difference in brightness.
STI1797 7.5 11.8 8.6'' 142° 2015 Per 02h10m24.05s +56°17'49.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Pretty orange and blue stars, 2-3 delta mag, well separated 10"
STF224 8.3 8.9 6.0'' 244° 2016 Ari 02h10m52.01s +13°41'00.40"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Near equal brightness white pair, ~10", nice split.
59 And, STF222 6.0 6.7 16.6'' 37° 2018 And 02h10m52.83s +39°02'22.40"
Robert Zebahl
Leipzig (Germany)
8x40 Separated, but very tight. I used a tripod.
Rene Merting
Drachhausen (Germany)
16x70 ein sehr dichtes Sternpaar, ganz knapp getrennt sichtbar - Komponente B im Nordosten 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
Rene Merting
Drachhausen (Germany)
100mm (32x) bei 32x ein auffälliges Sternpaar - gut getrennt mit leichtem Farbkontrast, Komponente A im Südwesten 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) SQM-L 20.4: Nice and evident double star, easy to split. About 12 arcminutes NE there is NGC828 (v12.3m),
STF226 AB 8.0 9.6 1.8'' 231° 2017 Ari 02h12m15.40s +23°57'29.50"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Near equal mag. orange, but split is lost in poor seeing, appears oval with 170x., it appears as two lobes awash in diffraction at 277x
★★★ STF227, iota Tri, 6 Tri 5.3 6.7 3.7'' 69° 2016 Tri 02h12m22.28s +30°18'11.10"
Robert Zebahl
Leipzig (Germany)
70mm (57x) At 44x even separable with a clear difference in brightness, whereby the companion is almost outshone by the primary component. At 57x easy to separate. Primary component shines in bright orange, companion slightly orange. Beautiful sight together with STF232 in one field of view! ../projects/doublestars/robert_zebahl/sketches/2019-12-12_6_tri_stf232.jpg
Uwe Pilz
Leipzig (Germany)
105mm (88x) weiß und blau ../projects/doublestars/uwe_pilz/sketches/191230stf227.jpg
Frederik Wanink
Itterbeck (Germany)
254mm (200x) Helligkeitsunterschied deutlich
★★★ STF231, 66 Cet AB 5.7 7.7 16.8'' 235° 2018 Cet 02h12m47.54s -02°23'37.10"
Uwe Pilz
Leipzig (Germany)
105mm (88x) weiß und leuchtend rot! ../projects/doublestars/uwe_pilz/sketches/191129_66Cet.jpg
S405 AB 6.5 7.2 55.6'' 278° 2018 Cep 02h12m49.98s +79°41'29.30"
Rene Merting
Drachhausen (Germany)
100mm (20x) bei 20x weit auseinander stehendes helles Pärchen - beide Sterne sind etwa gleich hell (laut Stelle Doppie 0.68 mag Helligkeitsunterschied)
★★ STF232 7.8 7.9 6.5'' 66° 2016 Tri 02h14m42.16s +30°23'41.20"
Robert Zebahl
Leipzig (Germany)
70mm (22x) Very beautiful view! With all used magnifications together with iota Tri (6 Tri) in one field of view. Separable at 22x, but the components are still quite close together and appear similarly bright. At 44x easy to separate with little difference in brightness. At 57x a very small color difference is visible without being able to clearly name the colors. STF232 was sketched together with 6 Tri.
STF230 7.9 9.4 23.8'' 259° 2015 Per 02h14m57.07s +58°29'26.00"
Rene Merting
Drachhausen (Germany)
16x70 ein knapp getrenntes Pärchen - Komponente B westlich von A wirkt wie ein schwacher Schimmer - kaum ein Farbunterschied, obwohl B gut 1,5 Größenklassen schwächer ist - bei diesem Helligkeitsunterschied wirkt die schwächere Komponente meist dumpf grau-braun, hier ist das nicht der Fall
Rene Merting
Drachhausen (Germany)
100mm (20x) bei 32x einfach getrennt - Komponente B im Westen ist gut 1,5 Größenklassen schwächer und grau, A ist auch nicht wirklich strahlend weiß - zurück auf 20x noch immer ein gut getrenntes Pärchen
STF237 AB 9.5 9.9 14.5'' 237° 2015 Ari 02h15m42.29s +10°46'15.60"
Mark McCarthy
Fremont (California/USA)
508mm (333x) Near equal obvious split. seeing not all that great, full aperture. (B star is 0.1" pair equal mag)
STF240 8.3 8.6 4.8'' 52° 2015 Ari 02h17m15.74s +23°52'24.80"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Equal white ~9th mag, ~5"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Faint but pretty wide separation ~4", equal magnitude yellowish-white.
STF234 AB 8.7 9.4 0.6'' 222° 2012 Cas 02h17m23.00s +61°21'06.50"
Mark McCarthy
Fremont (California/USA)
317mm (885x) Light orange star, definitely elongated, maybe notched, but no convincing split. Tough little Struve.
STF239 7.1 7.8 13.6'' 212° 2017 Tri 02h17m25.29s +28°44'42.10"
Robert Zebahl
Leipzig (Germany)
55mm (25x) Easy to split, large distance, noticeable difference in brightness.
STF244 9.3 9.4 4.4'' 290° 2015 Ari 02h17m34.01s +22°13'50.30"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Pretty faint, equal magnitude ~3-4", well split.
BU1170, 7 Per BC 11.5 11.7 0.3'' 313° 1958 Per 02h18m04.12s +57°32'07.40"
Mark McCarthy
Fremont (California/USA)
317mm (553x) The B star feels elongated with averted vision, this is a marginal detection of the BC component.
BU1170, 7 Per A-BC 6.1 12.3 68.7'' 358° 2013 Per 02h18m04.58s +57°30'58.70"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Near the Double Cluster. Pretty orange-yellow star. B star is distant and faint. The B star feels elongated with averted vision (see BC).
STF245 AB 7.3 8.0 11.0'' 294° 2015 And 02h18m36.27s +40°16'43.70"
Rene Merting
Drachhausen (Germany)
16x70 die schwächere Komponente ist nordwestlich des Hauptsterns zu erkennen - es sind eindeutig zwei Sterne, sie sind aber noch nicht eindeutig trennbar
Rene Merting
Drachhausen (Germany)
100mm (32x) bei 64x steht Komponente B im Nordwesten gut abgesetzt von A - nur geringer Helligkeitsunterschied - zurück auf 32x dann zeigt sich ein nettes eng stehendes Pärchen
Robert Zebahl
Leipzig (Germany)
120mm (50x) Both components well seen with noticeable difference in brightness.
STF249 7.2 9.0 2.3'' 196° 2015 Tri 02h21m35.66s +44°35'59.70"
Robert Zebahl
Leipzig (Germany)
63mm (168x) Not separated. The diffraction disk showed again and again irregularities, which indicated a double star.
BLL7, S Per 10.8 11.4 69.1'' 20° 2014 Per 02h22m51.72s +58°35'11.50"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Wide near equal pair
HLD7 8.0 9.9 1.7'' 182° 2015 Per 02h25m25.96s +58°12'09.30"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Challenging due to poor transparency but no doubt, a 3 delta mag pair in the diffraction, 1.5"
★★ STF262, iota Cas AB 4.6 6.9 2.7'' 227° 2016 Cas 02h29m03.96s +67°24'08.70"
AC 4.6 9.1 6.7'' 117° 2015
AD 4.6 8.5 210.9'' 60° 2016
Robert Zebahl
Leipzig (Germany)
55mm (27x) Only the D component was well visible. The components B & C were not visible even at magnifications up to 167x. The sky was clearly brightened (Bortle 7).
Robert Zebahl
Leipzig (Germany)
70mm (120x) Components A, B and C pretty close together, D far apart. Component B appeared slightly elongated on the first diffraction ring of the primary component. Rewarding! ../projects/doublestars/robert_zebahl/sketches/2019-08-25_iota_cas.jpg
Rene Merting
Drachhausen (Germany)
100mm (32x) AD: bei 32x extrem weiter Abstand zwischen A und D, Helligkeitsunterschied mehr als 2 Größenklassen (laut Stelle Doppie sogar 3.85 mag)
Rene Merting
Drachhausen (Germany)
100mm (64x) AC: bei 64x getrennt, schöner Farbkontrast, Komponente A ist weiß mit einem Stich ins Gelbe, C leicht bräunlich
Rene Merting
Drachhausen (Germany)
100mm (142x) AB: bei 142x zeigt sich Komponente B im Südwesten mit gut einem Drittel das Abstandes AC, Helligkeitsunterschied 1,5 bis 2 Größenklassen
Uwe Pilz
Leipzig (Germany)
105mm (200x) Dreifachstern lohnend ../projects/doublestars/uwe_pilz/sketches/iotaCas.jpg
Robert Zebahl
Leipzig (Germany)
152mm (129x) Component D easy to see even at lowest magnification. Component C is also easily visible at 49x. At 69x the component B is indicated, at 100x clearly visible. C appears slightly gray-blueish and obviously fainter than B. Grand sight at 129x!
HJL1019 AB 6.1 9.6 217.1'' 323° 2000 Ari 02h29m13.68s +23°28'08.40"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Very wide separation, 1-2 delta mag star to the west-ish. B star is a 0.4" pair, not seen.
STF268 6.7 8.5 2.9'' 131° 2015 Per 02h29m24.96s +55°32'10.50"
Robert Zebahl
Leipzig (Germany)
70mm (80x) At 67x the faint companion can be guessed and is still slightly outshined by the primary component. At 80x and 100x relatively well separable with clear difference in brightness, but close together. The companion is close to the first diffraction ring of the primary component.
Rene Merting
Drachhausen (Germany)
100mm (107x) bei 64x lässt sich der Stern nicht richtig scharf stellen - bei 107x ist Komponente B dann ganz knapp getrennt südöstlich von A erkennbar - Helligkeitsunterschied eine 3/4 Größenklasse (1.78 mag lt. Stelle Doppie)
Robert Zebahl
Leipzig (Germany)
152mm (129x) Easily separable with significant difference in brightness. The fainter companion is nicely separated from the primary component and visible as a tiny star.
Mark McCarthy
Fremont (California/USA)
317mm (553x) Orange A, faint, wide separated B.
STF263, V528 Cas AB 8.6 10.9 15.0'' 103° 2015 Cas 02h29m37.75s +60°39'26.20"
Mark McCarthy
Fremont (California/USA)
317mm (553x) At the end of an arc of three stars of similar magnitude. The pair is wide, 2 delta mag. Quadruple system but with a lot of complicated orbital dynamics going on: AB, AC, AD, BC, BD, CD
STF271 AB 5.9 9.9 12.8'' 183° 2015 Ari 02h30m32.31s +25°14'06.80"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Yellow white with very faint bluish B, 3 delta mag to south, wide separation.
STF270 AB 7.0 9.7 21.3'' 306° 2016 Per 02h30m50.65s +55°32'54.20"
Rene Merting
Drachhausen (Germany)
16x70 der Doppelstern steht innerhalb einer sehenswerten Formation aus 6 Sternen, die ein gleichseitiges Dreieck bilden - die hellsten drei Sterne bilde eine Seite im Norden, zur Spitze nach Süden werden die Sterne immer schwächer - STF270 steht mitten in der Nordseite - Komponente B ist wie ein kleiner zarter Hauch nordwestlich von A erkennbar, Helligkeitsunterschied mehr als 2,5 Größenklassen - kein reizvoller Fernglas-Doppelstern, aber die Umgebung ist interessant
Rene Merting
Drachhausen (Germany)
100mm (32x) bei 32x ein leichter Fang, gut getrenntes Pärchen - Komponente B im Nordwesten ist zwar sehr schwach, aber direkt immer noch gut erkennbar - Helligkeitsunterschied 3 Größenklassen - Komponente A strahlend weiß, B eher grau, wenn überhaupt als Farbe erkennbar
Mark McCarthy
Fremont (California/USA)
317mm (553x) Nice orange star with wide B
Mark McCarthy
Fremont (California/USA)
317mm (553x) Tighter, 1 D-mag, white A reddish B.
A968 9.0 9.5 1.7'' 27° 2017 And 02h31m15.90s +47°02'32.10"
Robert Zebahl
Leipzig (Germany)
102mm (125x) Clearly split, tight, slightly unequal.
STF93, alp Umi AB 2.0 9.1 18.4'' 236° 2016 UMi 02h31m49.09s +89°15'50.70"
Rene Merting
Drachhausen (Germany)
100mm (32x) 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
STF272 8.3 8.4 1.9'' 216° 2017 Per 02h33m08.71s +58°27'44.90"
Robert Zebahl
Leipzig (Germany)
152mm (129x) Easy to separate, but close together with very little difference in brightness. Beautiful view. Double star stands in a half arc of stars.
HJ2143 AB 8.1 9.6 23.6'' 20° 2015 Per 02h33m32.79s +57°32'14.80"
Rene Merting
Drachhausen (Germany)
16x70 Komponente B ist nur mit viel Konzentration knapp getrennt und sehr schwach nordöstlich von A zu erkennen - schwierig
Rene Merting
Drachhausen (Germany)
100mm (32x) bei 32x ein ordentlich getrenntes Pärchen - Komponente B ist sehr schwach, gut 1,5 Größenklassen schwächer - Komponente A ist weiß, B wirkt grau
Rene Merting
Drachhausen (Germany)
320mm (45x) bei 45x ein weit getrenntes Pärchen, auffallend am südwestlichen Rand der Sternhaufens NGC 957 - Komponente B ist gut 1,5 Magnituden schwächer - A weiß, B rostbraun
A1528 9.4 9.6 1.6'' 193° 2017 And 02h35m42.19s +44°11'23.30"
Robert Zebahl
Leipzig (Germany)
102mm (160x) At 125x almost separated with visible difference in brightness. AT 160x rather faint, barely split, little difference in brightness.
★★ 30 Ari STFA5 AB 6.5 7.0 37.9'' 275° 2018 Ari 02h37m00.52s +24°38'50.00"
RAO8 BC 7.0 11.0 0.6'' 283° 2015
Robert Zebahl
Leipzig (Germany)
70mm (22x) AB: At 22x widely separated, striking with a rather small difference in brightness. A seemed a bit warmer in color compared to B with a hint of orange. At 44x, both seemed slightly orange with very little difference in color.
Uwe Pilz
Leipzig (Germany)
105mm (88x) AB: trennbar bei 22x. Weiß und blau ../projects/doublestars/uwe_pilz/sketches/191230_30Ari.jpg
Mark McCarthy
Fremont (California/USA)
317mm (277x) AB: Near equal light orange, very wide. B has a C pair 0.6" and 4 delta mag.
Mark McCarthy
Fremont (California/USA)
317mm (553x) AB: Near equal magnitude, wide separated, PA to WSW
STF285 7.5 8.1 1.5'' 168° 2017 Tri 02h38m45.91s +33°25'08.20"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Very finely split near equal pair. Orange, about 1/2 disk split.
A1279 10.1 10.1 2.1'' 306° 2015 Per 02h40m25.95s +55°18'33.40"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Can just see the faint star in the 80mm finder. In the scope it is a hazy elongated smear which resolves to two equal points with seeing, 2", Very nice!
STF283 AB 8.4 9.0 1.8'' 210° 2016 Cas 02h40m31.92s +61°29'02.20"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Well split light orange pair, half delta mag.
STF284, V482 Cas AB 7.9 9.9 6.9'' 191° 2016 Cas 02h40m44.95s +61°16'56.10"
Rene Merting
Drachhausen (Germany)
100mm (64x) bei 64x zeigt sich Komponente B gut getrennt südlich von A - schönes Kontrastpaar, bestimmt 2,5 Größenklassen Helligkeitsunterschied
STF291 AB 7.7 7.5 3.4'' 118° 2017 Ari 02h41m06.59s +18°48'00.70"
AC 7.7 9.5 65.5'' 242° 2015
Robert Zebahl
Leipzig (Germany)
70mm (57x) AB: At 44x almost, at 57x clearly split, but still very tight with rather small difference in brightness.
Uwe Pilz
Leipzig (Germany)
105mm (88x) hellster Stern gelb, andere Farben nicht erkennbar ../projects/doublestars/uwe_pilz/sketches/191230stf291.jpg
STF295, 84 Cet 5.8 9.7 3.6'' 301° 2012 Cet 02h41m14.00s -00°41'44.40"
Robert Zebahl
Leipzig (Germany)
102mm (160x) Quite easy at a moderate distance, whereby the companion appeared rather faint and was best visible with averted vision.
Uwe Pilz
Leipzig (Germany)
105mm (144x) trotz diesigem Himmel bei 144x indirekt erkennbar. Schwieriger bei 200x ../projects/doublestars/uwe_pilz/sketches/200111_84Cet.jpg
Robert Zebahl
Leipzig (Germany)
152mm (129x) Easy. The quite dim companion is immediately visible in moderate distance clearly outside of the first diffraction ring despite few, high clouds. The primary component appeared white-yellowish.
HJ1123 8.4 8.5 20.4'' 250° 2017 Per 02h41m58.44s +42°47'30.60"
Rene Merting
Drachhausen (Germany)
100mm (32x) bei 32x knapp getrennt - ein schwacher Doppelstern, der kaum auffällt im Zentrum des Sternhaufens M 34
★★ STT44 AB 8.5 9.0 1.4'' 55° 2016 Per 02h42m13.13s +42°41'57.20"
AC 8.5 8.3 87.2'' 290° 2017
Uwe Pilz
Leipzig (Germany)
105mm (200x) AB: schwierig
Robert Zebahl
Leipzig (Germany)
152mm (129x) AB: At 129x barely separable, at 150x separated quite clearly with a noticeable difference in brightness. The double star is located within Messier 34!
Mark McCarthy
Fremont (California/USA)
317mm (553x) AB: In M34 open cluster! Close near equal pair, 1.5", very nice! The cluster is pretty, loose, and jangly with stars of varying magnitudes. What a treat.
BU521 AB 6.3 11.6 5.3'' 162° 1928 Per 02h43m01.98s +48°15'54.90"
Mark McCarthy
Fremont (California/USA)
317mm (885x) Bulging heart shape (if seen from slightly below and to the side), even at 885x, but no split. Light yellow-orange.
gamma Cet, 86 Cet, Kaffaljidhma STF299 AB 3.5 6.2 2.0'' 299° 2015 Cet 02h43m18.04s +03°14'08.90"
ALD124 AC 3.5 10.2 843.1'' 306° 2000
Uwe Pilz
Leipzig (Germany)
105mm (144x) AB: extrem schwierig ../projects/doublestars/uwe_pilz/sketches/191129gammaCet.jpg
BU306 AB 6.4 10.4 3.0'' 19° 2015 Ari 02h43m51.25s +25°38'18.00"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Very nice white and 3 delta mag bluish B, nicely seen 4".
Mark McCarthy
Fremont (California/USA)
317mm (553x) ~4", ~4 delta mag, PA to north. very faint blue but steady.
STF300 7.9 8.1 3.2'' 316° 2016 Ari 02h44m36.85s +29°27'36.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Faint but very easy 3-4" separated pair. Near equal magnitude.
BU307 7.1 11.6 16.0'' 317° 2015 Ari 02h47m38.61s +29°40'42.80"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Faint B to WNW, wide separation, not terribly difficult.
STF301 7.8 8.7 8.2'' 18° 2016 Per 02h47m38.75s +53°56'35.80"
Robert Zebahl
Leipzig (Germany)
70mm (22x) Rather faint double star with a handful of other stars in the immediate vicinity. At 22x clearly separated, but still close together with visible difference in brightness. At 31x the primary component looked slightly orange.
Rene Merting
Drachhausen (Germany)
100mm (32x) bei 32x ganz knapp getrenntes Pärchen - Komponente B im Norden ist eine halbe Größenklasse schwächer - nett anzusehen
STF311, pi Ari, 42 Ari AB 5.3 8.0 3.2'' 119° 2012 Ari 02h49m17.55s +17°27'51.50"
Robert Zebahl
Leipzig (Germany)
70mm (133x) The companion is visible as elongated, non-condensed brightening in the first diffraction ring of the primary component.
Uwe Pilz
Leipzig (Germany)
105mm (144x) sehr schwierig bei 88x, eindeutig bei 144x ../projects/doublestars/uwe_pilz/sketches/191230_PiAri.jpg
STT46 AB 6.8 10.8 4.9'' 75° 2015 Ari 02h50m00.31s +30°31'34.80"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Yellow with very faint orangish B, PA to NE, ~5-6".
★★ eta Per, 15 Per STF307 AB 3.8 8.5 30.4'' 301° 2017 Per 02h50m41.81s +55°53'43.80"
STF307 AC 3.8 11.6 64.0'' 269° 2014
WAL19 AF 3.8 11.4 57.7'' 25° 2013
WRD1 CD 11.6 12.7 5.2'' 116° 2015
SHJ34 AE 3.8 9.2 242.9'' 297° 2012
FYM161 CG 11.6 14.0 15.8'' 229° 2015
Rene Merting
Drachhausen (Germany)
16x70 STF307 (AB): Miram, die Komponente A ist satt gelb und bildet ein flaches Dreieck mit zwei Sternen westlich und nordwestlich, die aber 1,8' und 3,9' entfernt stehen - dazwischen wird alles vom Glanz von Miram überstrahlt - im Fernglas hat B mit den eigentlich ordentlichen Daten wie Abstand 30,4" und Helligkeit 8.5 mag (andere Quellen sagen 10.7 mag) trotzdem keine Chance auf Erleuchtung
Rene Merting
Drachhausen (Germany)
100mm (32x) STF307 (AB): bei 32x sehr ansehnlich - Komponente B steht gut getrennt nordwestlich vom signal-gelben Eta Persei - Helligkeitsunterschied sehr groß, nicht abschätzbar
Uwe Pilz
Leipzig (Germany)
105mm (88x) Dreifachsystem, nahe Komponente: PW und Abstand stimmt, is aber viel zu dunkel (10m statt 8m5). Ein Mysterium
Mark McCarthy
Fremont (California/USA)
317mm (553x) STF307 (AB): Orange with faint, bluish, widely separated B.
STF316 9.5 9.7 14.2'' 136° 2015 Per 02h52m05.13s +37°17'45.70"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Wide near equal
STF314 AB-C 7.0 7.3 1.6'' 316° 2018 Per 02h52m52.03s +52°59'50.60"
Robert Zebahl
Leipzig (Germany)
152mm (129x) Beautifully separated, quite close together. Difference in brightness visible, but rather small. Easy to find and bright. Very nice.
Frederik Wanink
Itterbeck (Germany)
254mm (460x) ähnlich hell ../projects/doublestars/frederik_wanink/sketches/STF314.jpg
Mark McCarthy
Fremont (California/USA)
317mm (553x) a nice half delta mag pair ~2"
Mark McCarthy
Fremont (California/USA)
317mm (553x) near equal brightness, AB more yellow yellow-white of the two, ~2 disk separation
A2906 AB 7.3 8.8 0.2'' 120° 2005 Per 02h52m52.03s +52°59'50.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) This is the brighter of the STF 314 pair. I have a feeling it is slightly elongated but nothing certain.
STT48 6.4 10.6 6.6'' 317° 2016 Per 02h53m21.07s +48°34'11.90"
Mark McCarthy
Fremont (California/USA)
317mm (885x) Yellow-orange with bluish round haze above it, the haze brightens with seeing and averted vision but does not resolve to point even at 885x
STF318, 20 Per AB-C 5.4 9.7 14.0'' 237° 2014 Per 02h53m42.58s +38°20'15.60"
Rene Merting
Drachhausen (Germany)
100mm (64x) trotz großem Abstand reichen erst 64x für die Trennung - Komponente C ist zu schwach für niedrigere Vergrößerungen, vielleicht 3,5 mag schwächer als AB - jetzt bei 64x, wo C sichtbar wird, ist sie schon gut abgesetzt von AB erkennbar und wirkt leicht bräunlich, AB dagegen wirkt warm-weiß
Mark McCarthy
Fremont (California/USA)
317mm (553x) Wide 2 delta mag. no sign of elongation of BU 524, which should be the B star's pairing
Mark McCarthy
Fremont (California/USA)
317mm (553x) Yellow, 2 delta mag, blue B. Wide separation.
BU1293 6.8 10.4 2.0'' 349° 1991 Per 02h54m00.98s +47°09'39.20"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Uncertain. Seems a brightening persistent on one side of the diffraction but nothing resolves when A resolves with seeing. Poor transparency during the observation
BU525 7.5 7.5 0.5'' 276° 2018 Ari 02h58m53.11s +21°37'03.90"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Star is decidedly not round but does not show shape other than a stretching.
STF333, eps Ari AB 5.2 5.6 1.4'' 211° 2018 Ari 02h59m12.73s +21°20'25.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Equal bright white just split with seeing.
STF331 5.2 6.2 11.8'' 86° 2018 Per 03h00m52.18s +52°21'06.50"
Robert Zebahl
Leipzig (Germany)
63mm (46x) Easy to separate with relatively large difference in brightness.
Rene Merting
Drachhausen (Germany)
100mm (20x) bei 32x ein feines Pärchen, besser als knapp getrennt und richtig hell - Komponente A im Osten ist rein weiß, B dagegen in einem eigenartigen kupfer-weiß, wenn man das so sagen kann - bei 20x passt nur noch ein dünnes Blatt Papier zwischen die beiden Sterne
Uwe Pilz
Leipzig (Germany)
105mm (150x) einfach
Mark McCarthy
Fremont (California/USA)
317mm (553x) Yellow A. B ~1 D-mag.
STF336 7.0 8.3 8.7'' 2018 Per 03h01m29.07s +32°24'45.80"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Wide separation B orange A
STF337 AB 8.0 9.3 17.6'' 163° 2015 Per 03h02m16.79s +41°23'45.70"
Rene Merting
Drachhausen (Germany)
100mm (32x) bei 32x ein gut getrenntes Pärchen, Komponente B im Südosten ist deutlich schwächer, gerade so erkennbar - deshalb wirkt B auch farblos gegen die weiße Komponente A
STF346, 52 Ari AB-C 5.5 10.8 5.1'' 358° 2005 Ari 03h05m26.69s +25°15'18.70"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Bright yellow-white AB, orange C. ~4-5 delta mag, 5-6" PA to N. Did not notice AB 0.5"
ES558 7.7 10.6 8.4'' 2014 Per 03h06m47.76s +45°45'02.80"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Yellow-orange star with very faint bluish companion, 5", 2-3 delta mag.
STF360 8.0 8.3 2.8'' 126° 2018 Per 03h12m09.59s +37°13'03.30"
Robert Zebahl
Leipzig (Germany)
70mm (67x) Pretty faint double star. At 57x barely separable with almost touching diffraction disks. The components seemed similarly bright. At 67x still very close together, at 100x easy to separate.
Robert Zebahl
Leipzig (Germany)
152mm (69x) Split, but close together, similarly bright. The double star appears overall slightly orange compared to the surrounding stars.
★★ STT51 8.5 8.7 0.5'' 346° 2018 Per 03h12m57.08s +44°17'14.70"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Very fine clean split at the finest moments, which is once every 10 seconds. 0.5", equal mag.
HU544 6.7 8.2 1.7'' 103° 2015 Per 03h15m48.70s +50°57'21.20"
Robert Zebahl
Leipzig (Germany)
70mm (133x) Clearly seen as figure '8' with noticeable difference in brightness.
Uwe Pilz
Leipzig (Germany)
105mm (196x) klebt am ersten Ring ../projects/doublestars/uwe_pilz/sketches/Hu544.jpg
Uwe Pilz
Leipzig (Germany)
105mm (260x) im ersten Ring
Robert Zebahl
Leipzig (Germany)
152mm (129x) Wonderfully separated in equally beautiful star surroundings! Clear difference in brightness visible. To the east there is a brighter star, which shines yellowish-orange. HU544 itself seems rather cool in color. ../projects/doublestars/robert_zebahl/sketches/2019-11-23_hu544.jpg
STF369 6.8 7.7 3.6'' 30° 2018 Per 03h17m11.45s +40°28'58.60"
Robert Zebahl
Leipzig (Germany)
70mm (57x) At 44x still separable with noticeable difference in brightness. At 57x well separable, whereby the components are still very close together. The difference in brightness is more clearly visible here.
Rene Merting
Drachhausen (Germany)
100mm (64x) bei 64x knapp getrennt - Komponente B im Nordosten wirkt eine halbe Größenklasse schwächer - beide Sterne schneeweiß
Robert Zebahl
Leipzig (Germany)
152mm (100x) Easily separable with clear difference in brightness. In terms of color, both components appeared slightly different: white-yellowish, slightly orange.
STF375 AB 7.6 9.9 2.7'' 316° 2009 Ari 03h20m21.23s +23°41'21.90"
Mark McCarthy
Fremont (California/USA)
317mm (553x) 1.5" orange B, 3-4 delta mag. Nice.
COU259, tau 1 Ari 5.3 8.1 0.9'' 218° 2015 Ari 03h21m13.63s +21°08'49.50"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Tau Ari. Bright, barely oval. Marginal.
STF381 7.6 8.8 1.1'' 108° 2015 Ari 03h23m19.33s +20°58'13.90"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Orange-yellow with 2x fainter B, very close split, with seeing, tough one.
TOK13, UX Ari AB 6.6 10.0 96.4'' 129° 2013 Ari 03h26m35.36s +28°42'55.20"
Mark McCarthy
Fremont (California/USA)
317mm (270x) UX Ari: Orange star with very faint wide blue B
Mark McCarthy
Fremont (California/USA)
317mm (553x) Orange-yellow with very wide 2x fainter B
STF388 8.0 9.0 2.8'' 215° 2016 Per 03h28m40.39s +50°26'10.80"
Rene Merting
Drachhausen (Germany)
100mm (107x) bei 107x zeigt sich Komponente B südlich von A und nur in guten Momenten sind beide Sterne knapp getrennt zu sehen
Mark McCarthy
Fremont (California/USA)
317mm (553x) Pretty blue and a little red pair, 1.5 delta mag. On the northern edge of Stock 1.
STF391 7.6 8.3 3.9'' 96° 2018 Per 03h29m13.74s +45°02'57.50"
Robert Zebahl
Leipzig (Germany)
70mm (57x) Clearly split, but close together, moderate difference in brightness. The double star is located in a very beautiful star field with some of the stars appearing colored, but this only came into its own at low magnification.
Robert Zebahl
Leipzig (Germany)
152mm (69x) Easy to separate with moderate difference in brightness. Slight difference in color: white-yellowish, slightly orange.
BU1179, 34 Per 4.7 7.3 0.6'' 146° 2007 Per 03h29m22.05s +49°30'32.20"
Mark McCarthy
Fremont (California/USA)
317mm (885x) Uncertain but can't resolve even at 885x
STF343 AB 8.4 9.8 35.3'' 327° 2015 Cep 03h29m50.94s +84°02'19.70"
Rene Merting
Drachhausen (Germany)
100mm (20x) bei 32x sind zwei schwache Sterne mit ordentlichem Abstand erkennbar - Komponente B ist eine Größenklasse schwächer und leicht grau-braun - zurück auf 20x ist B noch gerade so zu erkennen und wirkt nun etwas weißer
STF389 AB 6.4 7.9 2.6'' 71° 2015 Cam 03h30m10.93s +59°21'57.80"
Uwe Pilz
Leipzig (Germany)
60mm (198x) Ein Hauch mit einem Abstand von 0,4 Beugungsscheibendurchmesser, sehr schwierig. Einfach bei 105mm
Robert Zebahl
Leipzig (Germany)
70mm (133x) Easy to find and separated at 67x, but very tight. Easily separable at 133x, still relatively tight together with significant difference in brightness.
STFA7 AB 7.4 7.8 44.1'' 234° 2017 Tau 03h31m03.47s +27°43'53.60"
Mark McCarthy
Fremont (California/USA)
80mm (13x) Nice finder split, equal mag but faint, ~8th mag.
Mark McCarthy
Fremont (California/USA)
80mm (13x) Pretty finder split.
Uwe Pilz
Leipzig (Germany)
105mm (288x) gleichhell, einfach ../projects/doublestars/uwe_pilz/sketches/stfa7.jpg
Robert Zebahl
Leipzig (Germany)
120mm (18x) Well split with noticeable difference in brightness. Nice view together with the double star STF401 located southeast.
STF401 AB 6.6 6.9 11.5'' 270° 2018 Tau 03h31m20.76s +27°34'18.50"
Christopher Hay
Seeheim (Germany)
18x80 Cleanly split. Supplemented nicely by the wide pair STFA7 directly north, in very star-poor surroundings in 4° FOV.
Uwe Pilz
Leipzig (Germany)
105mm (288x) ein Hauch schwärze dazwischen ../projects/doublestars/uwe_pilz/sketches/stf401.jpg
Robert Zebahl
Leipzig (Germany)
120mm (18x) Barely split at 18x. At 40x difference in brightness is visible. Nice view together with the double star STFA7 located northwest.
Mark McCarthy
Fremont (California/USA)
317mm (270x) equal mag, white, well separated.
Mark McCarthy
Fremont (California/USA)
317mm (553x) Near equal white ~7", nice, W-E. Forms a double-double in wider FOV with STF 375.
STF412, 7 Tau AB 6.6 6.9 0.8'' 349° 2018 Tau 03h34m26.62s +24°27'52.10"
Uwe Pilz
Leipzig (Germany)
105mm (260x) A-B länglich
BU533 AB 7.5 7.7 1.0'' 222° 2018 Per 03h35m37.81s +31°40'48.70"
Robert Zebahl
Leipzig (Germany)
152mm (225x) At 129x clearly elongated with constriction. At 225x just so separable with similarly bright components.
Mark McCarthy
Fremont (California/USA)
317mm (270x) Overlapping yellow-orange disks, equal mag
S430 AB 7.2 7.5 41.0'' 96° 2017 Per 03h38m18.83s +44°48'06.50"
Rene 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
STF425 AB 7.5 7.6 1.9'' 59° 2018 Per 03h40m07.24s +34°06'59.30"
Robert Zebahl
Leipzig (Germany)
152mm (129x) Beautifully separated, relatively close together, very little difference in brightness.
STF427, V1268 Tau 7.4 7.8 7.0'' 207° 2016 Tau 03h40m38.77s +28°46'24.00"
Mark McCarthy
Fremont (California/USA)
80mm (13x) V1268: Wide near equal orange in finder. Loses its color when viewed in the scope under high magnification.
Robert Zebahl
Leipzig (Germany)
120mm (40x) At 40x barely split. At 75x easily split with visible difference in brightness.
Mark McCarthy
Fremont (California/USA)
317mm (270x) Near equal mag, white and fainter B is yellow, well split.
STT59 7.9 8.8 2.8'' 356° 2018 Per 03h40m40.62s +46°01'24.10"
Robert Zebahl
Leipzig (Germany)
70mm (67x) Already separable at 67x, but very tight. Easy to separate at higher magnification. Difference in brightness clearly visible.
Robert Zebahl
Leipzig (Germany)
152mm (100x) Nicely separated, but close together. Primary component appears rather whitish, companion darker with a hint of orange.
STF431, 40 Per 5.0 10.0 19.8'' 244° 2010 Per 03h42m22.64s +33°57'54.10"
Mark McCarthy
Fremont (California/USA)
317mm (270x) Wide, 2 delta mag, white-yellow and very faintly blue
STF419 AB 7.8 7.8 2.9'' 74° 2016 Cam 03h42m45.19s +69°50'44.30"
Robert Zebahl
Leipzig (Germany)
70mm (67x) Separated, but tight with equally bright components. Beautiful sight.
STF435 7.2 8.9 13.2'' 2015 Tau 03h43m06.52s +25°40'52.90"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Wide orange and blue, 2 delta mag. Nice big orange finder split 1 degree to the north from here, one of which has a faint wide pair when viewed through the telescope.
HJL1024 AB 8.0 9.6 196.7'' 175° 2015 Tau 03h43m41.53s +23°38'56.90"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Very wide faint companion, ~3 delta mag.
STF437 9.8 10.0 11.2'' 310° 2015 Per 03h44m09.15s +32°07'09.30"
Uwe Pilz
Leipzig (Germany)
105mm (88x) einfach
★★ BU535, omicron Per, 38 Per, Atik 3.9 6.7 1.1'' 20° 2015 Per 03h44m19.13s +32°17'17.70"
Uwe Pilz
Leipzig (Germany)
105mm (88x) =omikron Per, in IC348, lohnend! ../projects/doublestars/uwe_pilz/sketches/ic348.jpg
Robert Zebahl
Leipzig (Germany)
152mm (300x) In steady moments the faint companion is clearly recognizable as a small brightening in the first diffraction ring of the primary component.
Mark McCarthy
Fremont (California/USA)
317mm (270x) No split at 270x
HU103 AB 8.7 8.9 1.2'' 203° 2018 Per 03h45m22.61s +49°51'42.40"
Robert Zebahl
Leipzig (Germany)
152mm (225x) At 100x slightly elongated, at 129x elongated with constriction. At 225x clearly separated, but tight with little difference in brightness.
★★ BU536/S437, SAO76169 S437 AB-C 8.1 7.7 38.8'' 308° 2017 Tau 03h46m16.00s +24°11'23.50"
BU536 AB 8.1 9.4 1.0'' 178° 2015
BU536 CD 7.7 12.9 18.3'' 2015
Uwe Pilz
Leipzig (Germany)
105mm (288x) in den Plejaden
STF450 AB 7.3 9.4 5.8'' 263° 2017 Tau 03h47m24.41s +23°54'52.80"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Easy yellow-blue 5” 1.5 delta mag.
STF448 6.7 9.4 3.5'' 13° 2016 Per 03h47m52.66s +33°35'59.50"
Mark McCarthy
Fremont (California/USA)
317mm (270x) 2 delta mag 5" separated white and a little green-blue B
STT63 6.2 11.2 6.7'' 269° 2016 Per 03h48m18.08s +50°44'12.40"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Nice white disk with slightly blue haze 6" out but not resolved to point due to poor transparency.
HU1067, XY Per 9.7 10.6 1.3'' 77° 2015 Per 03h49m36.35s +38°58'55.50"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Light orange star, small, definitely elongated at 553x. Seems to resolve in best moments to a very faint B star, but uncertain. Very faint in the finder, at its limit.
STT64 AB 6.8 10.2 3.3'' 235° 2014 Tau 03h49m58.06s +23°50'55.30"
Mark McCarthy
Fremont (California/USA)
317mm (270x) Light orange star with 3-4 delta mag, ~3" separated companion, white
GRV195 AC 8.0 11.1 60.9'' 330° 2001 Tau 03h51m20.24s +26°21'13.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Wide separation, 2 delta mag. Did not see elongation in A for A1830AB
STT66 8.1 8.5 1.0'' 146° 2018 Per 03h52m04.69s +40°47'50.70"
Mark McCarthy
Fremont (California/USA)
317mm (270x) light orange equal magnitude, split with seeing, close ~1"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Wide separation orange stars of similar brightness
STF464, zeta Per, 44 Per AB 2.9 9.2 12.9'' 209° 2012 Per 03h54m07.92s +31°53'01.20"
AC 2.9 11.2 33.3'' 286° 2012
AD 2.9 10.4 98.6'' 195° 2012
AE 2.9 10.0 120.0'' 186° 2012
Robert Zebahl
Leipzig (Germany)
102mm (106x) AB: Easy to separate, but the B component appeared only as a very faint, tiny companion.
Mark McCarthy
Fremont (California/USA)
317mm (270x) AB: Triple system, 2 very faint stars nearby. Did not see BU 535 1.1" 3 delta mag, the second star I saw not in system
★★★ STF470, 32 Eri AB 4.8 5.9 6.9'' 349° 2018 Eri 03h54m17.49s -02°57'17.00"
Robert Zebahl
Leipzig (Germany)
55mm (27x) At 27x split, but still tight with noticeable difference in brightness. A slight difference in colors could be seen. At 56x the color difference was very evident: The brighter component appeared slightly yellowish, the fainter one slightly bluish. Highly recommended! The sketch was done few days later during another observation. ../projects/doublestars/robert_zebahl/sketches/2019-02-09_32_eri.jpg
Uwe Pilz
Leipzig (Germany)
105mm (288x) Farbkontrast, gelborange-blauweiß ../projects/doublestars/uwe_pilz/sketches/32Eri.jpg
STF471, epsilon Per, 45 Per AB 2.9 8.9 9.1'' 10° 2015 Per 03h57m51.22s +40°00'36.90"
Robert Zebahl
Leipzig (Germany)
63mm (46x) Easy to separate, but much fainter, second component, which appears as a small, faint spot. Nice view.
STT68, IQ Per AB 7.8 9.2 39.1'' 176° 2015 Per 03h59m44.66s +48°09'04.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Pretty, close split in 80mm finder. Nice & wide 1 delta mag in scope. Is IQ Per
STF479 AB 6.9 7.8 7.5'' 127° 2018 Tau 04h00m56.81s +23°12'05.40"
AC 6.9 9.4 57.7'' 243° 2018
Robert Zebahl
Leipzig (Germany)
102mm (28x) Components A & B clearly separated with visible difference in brightness. Noticeably fainter component C much wider apart. All three components form an obtuse triangle.
Robert Zebahl
Leipzig (Germany)
152mm (49x) Nice view. All three components easy to separate. A: white-yellowish; B: creamy white.
Robert Zebahl
Leipzig (Germany)
200mm (37x) AB: Nice, evident double star, easy to split. Slight difference in brightness.
Mark McCarthy
Fremont (California/USA)
317mm (207x) AB: Wide separation but closer than the AC, about half a delta mag.
Mark McCarthy
Fremont (California/USA)
317mm (207x) AC: 2x fainter than A star, and much wider than AB separation.
STF483 7.4 9.3 1.6'' 53° 2015 Per 04h04m07.10s +39°30'35.00"
Mark McCarthy
Fremont (California/USA)
317mm (270x) Yellow-orange star, very close, 1", 2 delta mag.
STT558, 37 Tau AB 4.5 10.0 135.0'' 194° 2013 Tau 04h04m41.71s +22°04'54.90"
Mark McCarthy
Fremont (California/USA)
317mm (207x) 37 Tau: Orange star with much fainter wide pair
STT531, 50 Per AB 7.3 9.7 2.9'' 353° 2015 Per 04h07m34.35s +38°04'28.30"
Mark McCarthy
Fremont (California/USA)
317mm (270x) AC is a finder split. The fainter of these has another star split 4", 2-3 delta mag., this is the AB pair.
SZ Cam, STF485 AE 6.9 6.9 18.0'' 306° 2018 Cam 04h07m51.38s +62°19'48.40"
Robert Zebahl
Leipzig (Germany)
8x40 Split, but very tight with equally bright components. I used a tripod.
Robert Zebahl
Leipzig (Germany)
70mm (15x) Easily split with nearly equally bright components. Located in the center of the open cluster NGC1502. Very nice view.
STF494 7.5 7.7 5.2'' 187° 2016 Tau 04h08m53.50s +23°05'55.10"
Robert Zebahl
Leipzig (Germany)
102mm (62x) At 28x separated, but very tight, similarly bright, both whitish. At 62x easy to separate, little difference in brightness and color: slightly orange; white-blueish. Color impression slightly more intense at 86x.
Robert Zebahl
Leipzig (Germany)
152mm (49x) Easy to separate at 49x with subtle color differences: slightly orange; white-blueish. Color impression slightly more intense at 100x. Beautiful sight.
STF3114 AB 7.7 9.6 2.9'' 158° 2015 Per 04h09m10.26s +40°09'40.50"
Mark McCarthy
Fremont (California/USA)
317mm (270x) Pretty light yellow star with 2 delta mag orangish B, ~3"
STF500 8.8 10.7 3.9'' 79° 2015 Per 04h11m41.62s +40°15'54.70"
Mark McCarthy
Fremont (California/USA)
317mm (553x) 1 delta mag, ~4", very hazy.
omicron 2 Eri, 40 Eri, STF518 A-BC 4.4 9.3 83.7'' 102° 2016 Eri 04h15m16.32s -07°39'10.30"
BC 9.5 11.2 8.3'' 331° 2017
Berthold Fuchs
Wiesbaden (Germany)
130mm A-BC: Triplesystem with a white Dwarf ../projects/doublestars/berthold_fuchs/photographs/Keid.png
HO328 7.4 9.1 0.5'' 2008 Tau 04h17m01.22s +19°40'32.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Olive shape. Light yellow-orange star, no clean split but clearly elongated.
Mark McCarthy
Fremont (California/USA)
317mm (553x) Very faint, very close ~0.8", emerges with seeing, hair split. Marginal
LDS5535 5.0 9.6 179.3'' 118° 2013 Tau 04h17m15.69s +20°34'43.50"
Mark McCarthy
Fremont (California/USA)
80mm (13x) Omega Tau: very wide finder split, 2 delta mag.
STF520 8.3 8.4 0.6'' 84° 2018 Tau 04h18m14.55s +22°48'24.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Faint elongated to overlapping disks.
BU310 7.1 12.6 18.9'' 173° 2015 Per 04h22m00.26s +39°56'03.30"
Mark McCarthy
Fremont (California/USA)
317mm (270x) The pair is one or both of two faint widly separated stars, makes a triangle. A is light orange.
BU87 6.2 8.6 1.9'' 167° 2012 Tau 04h22m22.74s +20°49'16.40"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Orange star with 1.5" blue 3 delta mag pair. Definite disks, well split, round with seeing.
STT82 AB 7.3 8.6 1.2'' 328° 2015 Tau 04h22m44.10s +15°03'22.10"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Very close, 0.8" 1.5 delta mag, PA to N/NW.
STF533 AB 7.3 8.5 20.2'' 61° 2017 Per 04h24m24.85s +34°18'53.10"
Mark McCarthy
Fremont (California/USA)
80mm (13x) Finder split, fairly wide, 1 delta mag
STT81, 56 Per AB 5.8 9.2 4.2'' 13° 2017 Per 04h24m37.46s +33°57'34.90"
Mark McCarthy
Fremont (California/USA)
317mm (270x) 56 Per. Pretty yellow and slight red pair, 2 delta mag.
STF546 7.9 9.2 6.8'' 181° 2015 Tau 04h27m00.62s +19°07'03.60"
Uwe Pilz
Leipzig (Germany)
105mm (144x) ../projects/doublestars/uwe_pilz/sketches/200115stf546.jpg
STF545 AB 6.9 8.8 18.5'' 58° 2016 Tau 04h27m04.85s +18°12'27.10"
Uwe Pilz
Leipzig (Germany)
105mm (288x) Begleiter schwach, erfordert sehr hohe Vergrößerung. Hauptstern weiß ../projects/doublestars/uwe_pilz/sketches/200115stf545.jpg
Mark McCarthy
Fremont (California/USA)
317mm (553x) Wide, white, 1.5 delta mag.
Mark McCarthy
Fremont (California/USA)
317mm (553x) Blush white, ~2 delta mag, PA to NE, wide separation.
BGH2, V921 Tau AB 7.0 9.1 109.5'' 2015 Tau 04h29m30.35s +17°51'47.40"
Mark McCarthy
Fremont (California/USA)
317mm (553x) White, wide, 1 delta mag.
STF554, 80 Tau 5.7 8.1 1.5'' 16° 2015 Tau 04h30m08.60s +15°38'16.20"
Mark McCarthy
Fremont (California/USA)
317mm (553x) 1" 2 delta mag, PA N. Nice!
LDS2246 AB 4.8 6.5 254.0'' 130° 2011 Tau 04h30m33.63s +16°11'38.50"
Mark McCarthy
Fremont (California/USA)
317mm (553x) A star is white, bright, perfect disk, the pair very wide, 2 delta mag.
★★ STF559 7.0 7.0 3.0'' 277° 2018 Tau 04h33m33.04s +18°01'00.20"
Robert Zebahl
Leipzig (Germany)
70mm (57x) Barely split with similarly bright components.
Robert Zebahl
Leipzig (Germany)
102mm (160x) Very nice view! Easy to separate, similarly bright at a nice distance from each other. The colors of the components changed over time: orange and subtle blue.
Uwe Pilz
Leipzig (Germany)
105mm (144x) trennbar mit 88x, westlicher Stern scheint etwas heller und gelb-orange, östlicher Stern orange ../projects/doublestars/uwe_pilz/sketches/200115stf559.jpg
Robert Zebahl
Leipzig (Germany)
152mm (69x) Beautiful sight, similar bright components, pretty tight.
STFB2, alp Tau AC 0.8 11.3 136.5'' 31° 2016 Tau 04h35m55.24s +16°30'33.50"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Aldebaran: Very bright orange with a lot of glare, but there is a steady faint star halfway to the field stop
STF572 AB 7.4 7.2 4.4'' 189° 2018 Tau 04h38m29.58s +26°56'25.60"
Robert Zebahl
Leipzig (Germany)
70mm (57x) Clearly separated, easy with beautiful color contrast: A slightly orange, B white.
LDS2266 AB 7.2 10.2 141.7'' 103° 2015 Tau 04h42m51.64s +18°43'14.40"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Orange, with a very wide 2 delta mag pair.
62 Eri, SHJ48 AB 5.5 8.9 66.1'' 76° 2013 Eri 04h56m24.19s -05°10'16.90"
Mark McCarthy
Fremont (California/USA)
317mm (277x) White stars, pretty wide 2 delta mag, PA to west. Did not notice Aa-Ab 0.6"
★★ STF616, omega Aur, 4 Aur AB 5.0 8.2 4.8'' 2014 Aur 04h59m15.41s +37°53'24.90"
Robert Zebahl
Leipzig (Germany)
70mm (57x) Easy, still relatively tight with a large difference in brightness. Component A appeared pretty bright and white-yellowish, while B appeared only as a tiny star. Very nice sight.
Uwe Pilz
Leipzig (Germany)
105mm (88x) blau und weiß ../projects/doublestars/uwe_pilz/sketches/200111_omegaAur.jpg
Uwe Pilz
Leipzig (Germany)
105mm (144x) gelb. Schöner Helligkeitskontrast, dabei aber einfach. Auch bei 88x trennbar ../projects/doublestars/uwe_pilz/sketches/191216_4Aur.jpg
Mark McCarthy
Fremont (California/USA)
203mm (113x) Omega Aurigae. The A was a surprising sickly blue-green color, and the B was a tawny brown, nicely split 5" away.
STT92, 5 Aur AB 6.0 9.5 4.1'' 285° 2017 Aur 05h00m18.35s +39°23'40.90"
Uwe Pilz
Leipzig (Germany)
105mm (160x) schwierig ../projects/doublestars/uwe_pilz/sketches/5Aur.jpg
Uwe Pilz
Leipzig (Germany)
105mm (288x) Nur bei sehr hoher Vergrößerung überhaupt zu trennen, schwierig ../projects/doublestars/uwe_pilz/sketches/200115stt92.jpg
STF636 7.1 8.5 3.7'' 104° 2017 Eri 05h03m01.95s -08°39'47.40"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Faint, small, close pair, white and orange, 2 delta mag, PA to east. Nice tight pair but still well split.
WDK1 6.2 7.8 5.6'' 279° 2015 Cam 05h03m23.90s +53°07'42.50"
Robert Zebahl
Leipzig (Germany)
70mm (67x) The double star could not be identified at magnifications between 67x and 133x even with a finder chart.
J307 A-BC 6.8 9.3 53.4'' 320° 2018 Ori 05h03m42.85s -02°32'23.90"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Orange star, very wide B, 1 delta mag to the NNW. Did not see BC 0.3"
66 Eri, STF642 AC 5.1 10.8 52.2'' 10° 2011 Eri 05h06m45.65s -04°39'18.60"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Bright white with much fainter star to the NW, very wide split.
STF649 AB 5.8 9.0 21.3'' 69° 2017 Eri 05h08m20.18s -08°39'55.10"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Yellow A, red B, ~3 delta mag, well split.
STF645 A-BC 6.0 9.1 11.3'' 29° 2017 Tau 05h09m45.06s +28°01'50.20"
Mark McCarthy
Fremont (California/USA)
317mm (270x) White and grey, 2 delta mag, wide. BC is BU 1047 0.3" near equal, but not seen
BGH21 7.0 9.3 314.6'' 353° 2015 Tau 05h10m03.87s +27°33'23.40"
Mark McCarthy
Fremont (California/USA)
317mm (270x) Yellowish-white star, the pair the faint, very wide star seen in the scope and finder.
★★ STF644 AB 7.0 6.8 1.6'' 223° 2018 Aur 05h10m18.81s +37°18'06.70"
Robert Zebahl
Leipzig (Germany)
70mm (100x) At 57x slightly elongated with a partially visible constriction. At 100x & 133x two clearly overlapping diffraction disks are visible as figure '8' with a small difference in brightness.
Robert Zebahl
Leipzig (Germany)
102mm (129x) Grand sight! Two almost touching diffraction disks, slight difference in brightness, both slightly yellowish.
Uwe Pilz
Leipzig (Germany)
105mm (200x) Beide Orange, mit schwarzem Zwischenraum. Lohnend ../projects/doublestars/uwe_pilz/sketches/200115stf644.jpg
Robert Zebahl
Leipzig (Germany)
152mm (129x) Great view, easy to separate, but still quite close together with low difference in brightness. Both components appeared slightly orange.
STF648 AB 8.1 8.9 4.7'' 62° 2017 Aur 05h10m59.19s +32°02'19.50"
Robert Zebahl
Leipzig (Germany)
55mm (40x) At 40x tight with obviously fainter component.
Robert Zebahl
Leipzig (Germany)
70mm (33x) Separated, but tight with noticeable difference in brightness.
Uwe Pilz
Leipzig (Germany)
105mm (144x) beide Komponenten gelb ../projects/doublestars/uwe_pilz/sketches/200111_stf648.jpg
Mark McCarthy
Fremont (California/USA)
317mm (270x) Light orange, half delta mag, wide.
STF652 6.3 7.4 1.7'' 180° 2017 Ori 05h11m45.35s +01°02'12.50"
Uwe Pilz
Leipzig (Germany)
105mm (260x) Länglich, 0“7
STF661, kappa Lep 4.4 6.8 2.2'' 357° 2008 Lep 05h13m13.87s -12°56'26.40"
Mark McCarthy
Fremont (California/USA)
371mm (553x) ~3-4 delta mag! ~1.5-2”, B in A’s diffraction.
STF668, 19 Ori, beta Ori, Rigel A-BC 0.3 6.8 9.4'' 204° 2017 Ori 05h14m32.27s -08°12'05.90"
Robert Zebahl
Leipzig (Germany)
55mm (83x) The second component was immediately seen as faint companion. ../projects/doublestars/robert_zebahl/sketches/2019-01-21_stf668.jpg
Robert Zebahl
Leipzig (Germany)
70mm (67x) First attempt at 133x: much fainter component clearly visible as a tiny star at a relatively large distance. After that the visibility was easy even at 67x. At 44x the faint component could only be guessed.
Robert Zebahl
Leipzig (Germany)
102mm (160x) Much fainter companion immediately visible as tiny star far outside the diffraction pattern of the primary component.
Uwe Pilz
Leipzig (Germany)
105mm (288x) zwei Ringe und zahlreiche radiale Strahlen um den Hauptstern ../projects/doublestars/uwe_pilz/sketches/Rigel.jpg
STF667 7.2 8.8 4.2'' 316° 2018 Ori 05h14m41.31s -07°04'18.10"
Mark McCarthy
Fremont (California/USA)
371mm (553x) Pretty orange A and 2x fainter B, which is a little blue-orange. 5”
STF664 7.8 8.4 4.7'' 177° 2018 Ori 05h15m10.54s +08°25'56.80"
Robert Zebahl
Leipzig (Germany)
70mm (100x) At 44x barely split. At 100x easily split with obvious difference in brightness.
BVD51 7.8 9.6 44.5'' 317° 2016 Ori 05h15m23.69s -03°21'57.40"
Mark McCarthy
Fremont (California/USA)
371mm (270x) Wide, 2 delta mag pair, A star is slightly red.
★★ STF653, 14 Aur AB 5.0 10.9 9.8'' 11° 2014 Aur 05h15m24.39s +32°41'15.30"
AC 5.0 7.3 14.2'' 225° 2017
AD 5.0 10.8 179.7'' 322° 2010
Uwe Pilz
Leipzig (Germany)
105mm (88x) AC: heller Stern gelblich weiß ../projects/doublestars/uwe_pilz/sketches/200111_14Aur.jpg
Mark McCarthy
Fremont (California/USA)
317mm (270x) AB: Triple, one of which is one delta mag fainter than the other equal pair. All well separated. [AC is the brighter pair, AB fainter.]
Mark McCarthy
Fremont (California/USA)
317mm (270x) AC: Triple, one of which is one delta mag fainter than the other equal pair. All well separated. [AC is the brighter pair, AB fainter.]
STF666 7.8 7.9 3.1'' 76° 2018 Aur 05h17m05.80s +33°19'47.20"
Robert Zebahl
Leipzig (Germany)
55mm (83x) At 40x slightly elongated, at 38x separated, but tight. Overall faint with components of similar brightness.
Robert Zebahl
Leipzig (Germany)
70mm (57x) Split, no difference in brightness and color. Very nice!
STF669 8.4 9.0 9.9'' 278° 2014 Aur 05h18m56.78s +45°14'51.40"
Robert Zebahl
Leipzig (Germany)
55mm (25x) Well separated with visible difference in brightness.
STF688 7.5 7.5 10.7'' 95° 2015 Ori 05h19m20.88s -10°44'49.90"
Robert Zebahl
Leipzig (Germany)
70mm (44x) Clearly split with decent angular distance. Components appeared nearly equally bright.
BU189 AB 6.4 9.8 4.6'' 285° 2002 Ori 05h20m26.41s -05°22'03.10"
Mark McCarthy
Fremont (California/USA)
371mm (553x) With good seeing and averted vision a 3x fainter point comes into view, can barely hold it, ~5”.
STF681 AB 6.6 9.2 23.3'' 183° 2017 Aur 05h20m39.16s +46°57'49.60"
Uwe Pilz
Leipzig (Germany)
105mm (88x) orange ../projects/doublestars/uwe_pilz/sketches/191216stf681.jpg
STT105 8.6 8.6 0.2'' 302° 2000 Ori 05h21m40.47s +12°40'06.20"
Mark McCarthy
Fremont (California/USA)
317mm (277x) very widely separated (11") orange pair. Pretty bright (7.3, 8.3).
STF684 7.7 9.3 1.5'' 141° 2015 Aur 05h22m11.04s +45°04'53.90"
Mark McCarthy
Fremont (California/USA)
317mm (270x) Fine white and yellow, 2-3" at this scale, 2 delta mag. 20,000 light years distant, is actually quite a large distance for the average double star
STF700, V1804 Ori 7.7 7.9 4.8'' 2017 Ori 05h23m05.54s +01°03'24.70"
Robert Zebahl
Leipzig (Germany)
70mm (44x) At 44x split, but very close together. At 100x clearly split with nearly equally bright components.
STT104 7.0 11.1 21.4'' 190° 2014 Aur 05h23m12.61s +47°01'17.90"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Very wide separation (208"!) orange pair.
STF701 6.1 8.1 6.2'' 139° 2018 Ori 05h23m18.50s -08°24'55.90"
Mark McCarthy
Fremont (California/USA)
371mm (553x) White and rusty red color, ~6”, 1 delta mag.
WNC2 A-BC 6.9 7.0 3.2'' 159° 2018 Ori 05h23m51.32s -00°51'59.80"
Robert Zebahl
Leipzig (Germany)
70mm (44x) Double star appeared elongated.
Robert Zebahl
Leipzig (Germany)
120mm (150x) Clearly split with nearly equally bright components.
ES576 AC 8.1 8.9 42.7'' 237° 2015 Aur 05h24m22.85s +42°36'37.00"
Mark McCarthy
Fremont (California/USA)
317mm (270x) Pretty finder split. In scope white stars, near equal to 0.5 delta mag.
DA5, eta Ori AB 3.6 4.9 1.8'' 77° 2017 Ori 05h24m28.62s -02°23'49.70"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Split is 1 disk separation, PA to E-W, and delta mag is 0.5-1.
STF698 AB 6.7 8.3 31.3'' 348° 2018 Aur 05h25m12.94s +34°51'18.60"
Uwe Pilz
Leipzig (Germany)
105mm (88x) rot-orange und blaugrau, lohnend ../projects/doublestars/uwe_pilz/sketches/200111_stf698.jpg
Mark McCarthy
Fremont (California/USA)
317mm (270x) Orange-yellow A and lilac B, wide, finder split, 1 delta mag. Pretty.
STF699 AB 7.9 8.6 8.9'' 346° 2018 Aur 05h25m38.50s +38°02'41.10"
Robert Zebahl
Leipzig (Germany)
55mm (25x) Well separated with slightly fainter companion.
Robert Zebahl
Leipzig (Germany)
70mm (22x) Separated at 22x, but still a relatively tight pair with a moderate difference in brightness. Together with sigma Aur in one field of view. Overall rather dim double star. At 57x very nice view! A: pale orange, B: slightly blueish
Uwe Pilz
Leipzig (Germany)
105mm (88x) schwach, aber lohnend. Orange und blau ../projects/doublestars/uwe_pilz/sketches/191216stf699.jpg
Mark McCarthy
Fremont (California/USA)
317mm (270x) Wide yellow and blue-white, half delta mag.
STF716, 118 Tau AB 5.8 6.7 4.7'' 210° 2018 Tau 05h29m16.49s +25°09'01.10"
Robert Zebahl
Leipzig (Germany)
70mm (33x) At 33x very tight with visible difference in brightness. At 47x very nice view. Both components appeared white.
Mark McCarthy
Fremont (California/USA)
317mm (277x) Equal white widely separated.
HU217, LY Aur 7.2 8.3 0.6'' 254° 2008 Aur 05h29m42.65s +35°22'30.10"
Frederik Wanink
Itterbeck (Germany)
254mm (640x) nicht als DS gesehen
STF725, 31 Ori 4.7 9.7 13.0'' 88° 2013 Ori 05h29m43.98s -01°05'31.80"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Bright orange and very faint blue B, 3 delta mag, pretty wide.
STF719 AB 7.5 8.8 1.4'' 336° 2016 Aur 05h30m06.14s +29°32'55.30"
AC 7.5 9.4 15.2'' 353° 2016
Robert Zebahl
Leipzig (Germany)
70mm (22x) AC: At 22x clearly visible difference in brightness at moderate separation. The companion appears only as a dim star. At 57x the color contrast is also quite noticeable. A: light orange, C: silvery blue
Uwe Pilz
Leipzig (Germany)
105mm (200x) AC: der helle Stern ist weiß. ../projects/doublestars/uwe_pilz/sketches/200111_stf719.jpg
Mark McCarthy
Fremont (California/USA)
317mm (277x) AB: widely separated with an orange A and bluish B
STTA63 6.5 7.7 75.2'' 277° 2017 Aur 05h30m45.08s +39°49'33.30"
Robert Zebahl
Leipzig (Germany)
70mm (22x) At 22x widely separated, visible difference in brightness. Slight difference in color: white-yellowish (at 44x light orange), slightly orange.
STF728, 32 Ori 4.4 5.8 1.3'' 44° 2017 Ori 05h30m47.06s +05°56'53.30"
Uwe Pilz
Leipzig (Germany)
105mm (288x) sauber getrennt, Beugungsscheiben berühren sich gerade ../projects/doublestars/uwe_pilz/sketches/32Ori.jpg
STF729, 33 Ori AB 5.7 6.7 1.8'' 26° 2017 Ori 05h31m14.53s +03°17'31.70"
Uwe Pilz
Leipzig (Germany)
105mm (180x) Begleiter etwas außerhalb des ersten Rings
delta Ori, Mintaka BU558 AB 2.4 14.2 33.4'' 229° 2016 Ori 05h32m00.40s -00°17'56.70"
STFA14 AC 2.4 6.8 56.2'' 2017
Uwe Pilz
Leipzig (Germany)
105mm (200x) AC: sehr weit in reichem Sternfeld ../projects/doublestars/uwe_pilz/sketches/Mintaka.jpg
Uwe Pilz
Leipzig (Germany)
105mm (288x) AC: reinweiß-violett
Mark McCarthy
Fremont (California/USA)
317mm (553x) AC: Bright, 2 delta mag, very wide.
STF730 AB 6.1 6.4 9.7'' 142° 2018 Tau 05h32m14.14s +17°03'29.30"
Robert Zebahl
Leipzig (Germany)
70mm (22x) At 22x beautiful sight, easy to separate with little difference in brightness. A appeared slightly yellowish. At 57x moderate, but still very nice color contrast: A yellowish, B rather white.
STF718 AB 7.5 7.5 7.7'' 73° 2015 Aur 05h32m20.59s +49°23'36.50"
Robert Zebahl
Leipzig (Germany)
55mm (25x) Easy to split with similarly bright components. Nive view.
STF734 AB 6.7 8.2 1.6'' 355° 2017 Ori 05h33m07.35s -01°43'02.50"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Very close pair, delta mag 1, PA to north.
DA4, 42 Ori AB 4.6 7.5 1.2'' 203° 2016 Ori 05h35m23.16s -04°50'18.10"
Uwe Pilz
Leipzig (Germany)
105mm (260x) Unregelmäßigkeit im ersten Ring, nicht eindeutig
STF750 6.4 8.4 4.2'' 60° 2018 Ori 05h35m31.07s -04°21'50.60"
Uwe Pilz
Leipzig (Germany)
105mm (192x) mit 60mm trennbar
STF742 7.1 7.5 4.1'' 274° 2017 Tau 05h36m26.38s +21°59'35.10"
Located about 0.5 degree east of Messier 1.
Robert Zebahl
Leipzig (Germany)
102mm (62x) Beautifully separated, relatively tight with well visible difference in brightness. Points directly toward Messier 1 and can be observed with it in one field of view. Very nice!
Robert Zebahl
Leipzig (Germany)
120mm (48x) Nice, evident double near Messier 1. Easy to split with almost equally bright components.
Robert Zebahl
Leipzig (Germany)
152mm (69x) At 49x just so, at 69x easily separable. The fainter component appeared a little warmer in terms of color. Great view together with Messier 1 in the field of view.
Robert Zebahl
Leipzig (Germany)
200mm (80x) Nice double star with nearly equally bright components.
STF736 7.5 8.6 2.7'' 2015 Aur 05h37m07.20s +41°49'41.70"
Robert Zebahl
Leipzig (Germany)
70mm (57x) At 57x split with almost no space in between. At 100x clearly split with noticeable fainter component.
STF749 AB 6.5 6.5 1.1'' 319° 2017 Tau 05h37m08.84s +26°55'28.30"
AC 6.5 10.5 181.6'' 299° 2011
Robert Zebahl
Leipzig (Germany)
70mm (133x) AB: I had the impression that in the correct position angle, without knowing that angle during observation, a minimal elongation could be detected. But observation is borderline and too doubtful.
Mark McCarthy
Fremont (California/USA)
317mm (277x) AB: Hair-split, equal brightness white stars. Nice.
★★ STF757 AB 8.0 8.3 1.5'' 242° 2018 Ori 05h38m06.52s -00°11'03.50"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Pretty double-double system. AB is close ~1.5" near equal 8th magnitude stars. A-AC widely separated near equal to the east. AD also to the east about 10" separated from A-AC
Mark McCarthy
Fremont (California/USA)
317mm (553x) Pretty double-double system. AB is close ~1.5" near equal 8th magnitude stars. A-AC widely separated near equal to the east. AD also to the east about 10" separated from A-AC
Mark McCarthy
Fremont (California/USA)
317mm (553x) Pretty double-double system. AB is close ~1.5" near equal 8th magnitude stars. A-AC widely separated near equal to the east. AD also to the east about 10" separated from A-AC
26 Aur, STF753 AB-C 5.5 8.4 12.0'' 269° 2013 Aur 05h38m38.10s +30°29'32.80"
Robert Zebahl
Leipzig (Germany)
70mm (22x) Separable at 22x, but quite close together and pretty uneven. Primary component appeared in bright orange. At 57x easy to separate. The faint companion appeared silvery-blue.
Mark McCarthy
Fremont (California/USA)
317mm (277x) Bright yellow A and a fainter yellow white B.
STF774, zeta Ori, 50 Ori, Alnitak AB 1.9 3.7 2.4'' 166° 2017 Ori 05h40m45.52s -01°56'33.30"
Robert Zebahl
Leipzig (Germany)
70mm (128x) Big difference in brightness. I could see the fainter component near the first ring of the Airy pattern of the brighter component.
Uwe Pilz
Leipzig (Germany)
105mm (288x) sauber getrennt, Beugungsscheiben berühren sich gerade ../projects/doublestars/uwe_pilz/sketches/Alnitak.jpg
Mark McCarthy
Fremont (California/USA)
317mm (207x) about 2" and 1.5 delta mag.
STF774, zet Ori AC 1.9 9.6 58.5'' 10° 2017 Ori 05h40m45.52s -01°56'33.30"
Mark McCarthy
Fremont (California/USA)
317mm (207x) Alnitak:AC is a very faint star widely separated outside of the main star's glare.
STF764 6.4 7.1 25.6'' 14° 2017 Aur 05h41m20.98s +29°29'14.70"
Robert Zebahl
Leipzig (Germany)
55mm (25x) Easy to split with large distance and noticeable difference in brightness.
Robert Zebahl
Leipzig (Germany)
70mm (22x) Very easy and bright, pretty wide apart with a small difference in brightness; whitish and slightly yellowish. A nice double star for binoculars.
Mark McCarthy
Fremont (California/USA)
317mm (277x) two bright whites widely separated
STF778 8.4 10.1 3.5'' 186° 2015 Aur 05h44m05.16s +30°56'01.80"
Mark McCarthy
Fremont (California/USA)
317mm (277x) double squeezed into the FOV with STF 789 at 277x, AB is a widely separated 4 delta mag pair
Mark McCarthy
Fremont (California/USA)
317mm (277x) double squeezed into the FOV with STF 789 at 277x, AC is a widely separated 4 delta mag pair, same brightness as B
STF789 AB 6.1 10.2 14.0'' 150° 2017 Ori 05h45m01.80s +04°00'29.30"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Widely separated 4 delta mag pair, in same FOV as STF 778
BU560 7.8 8.2 1.7'' 125° 2017 Aur 05h47m24.87s +29°39'26.90"
Robert Zebahl
Leipzig (Germany)
70mm (100x) Clearly visible as a double star with overlapping diffraction disks (figure '8') and small difference in brightness.
STF795, 52 Ori 6.0 6.0 1.0'' 222° 2015 Ori 05h48m00.21s +06°27'14.50"
Mark McCarthy
Fremont (California/USA)
317mm (553x) Bright white, near equal magnitude, near touching disks hairline split
★★ STT117 7.1 10.0 11.7'' 31° 2015 Aur 05h48m11.46s +30°32'06.70"
Mark McCarthy
Fremont (California/USA)
317mm (277x) bright yellow A and a small faint B. Carbon star to the west in FOV. Lovely, colorful field.
STF797 7.4 9.8 7.4'' 18° 2015 Ori 05h48m28.21s +04°42'14.00"
Mark McCarthy
Fremont (California/USA)
317mm (277x) Yellow and red, 2 delta mag, PA to north.
STF3115 6.5 7.5 0.9'' 337° 2017 Cam 05h49m04.64s +62°48'29.60"
Frederik Wanink
Itterbeck (Germany)
254mm (640x) gerade eben trennbar mit schwarzem Zwischenraum ../projects/doublestars/frederik_wanink/sketches/STF3115.jpg
STF796 AB 7.2 8.2 3.7'' 62° 2015 Aur 05h49m55.53s +31°47'08.70"
Robert Zebahl
Leipzig (Germany)
55mm (83x) Well split with noticeable fainter companion.
Mark McCarthy
Fremont (California/USA)
317mm (277x) Pretty yellow and faint blue
H5 90, nu Aur 4.0 11.4 55.9'' 206° 2012 Aur 05h51m29.39s +39°08'54.50"
Mark McCarthy
Fremont (California/USA)
317mm (270x) Bright orange with a much fainter wide split.
STF799 7.3 8.3 0.8'' 158° 2013 Aur 05h52m13.88s +38°33'36.40"
Frederik Wanink
Itterbeck (Germany)
254mm (640x) sehr schwierig, eher geraten
Mark McCarthy
Fremont (California/USA)
317mm (270x) Hairline split but definite in the best moments, white, half delta mag.
★★ BU1053 6.9 8.8 1.7'' 2016 Aur 05h53m28.64s +37°20'20.70"
Robert Zebahl
Leipzig (Germany)
70mm (133x) Border observation! Companion is temporarily visible in the correct position angle as an extremely dim brightening of the first diffraction ring of the primary component.
Mark McCarthy
Fremont (California/USA)
317mm (270x) Nice!! Blazing white and close but nicely split light blue B, 2 delta mag.
STF816 6.9 9.3 4.1'' 290° 2014 Ori 05h54m55.46s +05°51'38.80"
Mark McCarthy
Fremont (California/USA)
317mm (553x) White and orange, 3 delta mag, PA WNW.
MIL2 7.1 14.5 11.8'' 231° 2015 Aur 05h55m22.26s +29°57'50.20"
Mark McCarthy
Fremont (California/USA)
317mm (277x) A white A and slightly ruddy B, easy.
STT124 6.1 7.4 0.7'' 295° 2016 Ori 05h58m53.23s +12°48'29.80"
Mark McCarthy
Fremont (California/USA)
317mm (170x) Seeing not good. Bloated yellow star with bluish B just attached to the edge, like a wart. B is very faint, small.
Mark McCarthy
Fremont (California/USA)
317mm (553x) Briefly split in the best moments, 1 second out of 10. A star yellow-white and small, hard blue B.
STT545, 37 Aur, theta Aur AB 2.6 7.2 4.2'' 305° 2017 Aur 05h59m43.24s +37°12'45.90"
Robert Zebahl
Leipzig (Germany)
70mm (57x) At 57x nothing seen at first sight. At 133x the much fainter component was visible after a short time as a tiny star in the correct position angle. With this knowledge, the observation at 57x was also successful, even if one has to look very closely. The challenge here is not so much the angular distance as the large difference in brightness.
Uwe Pilz
Leipzig (Germany)
105mm (200x) blauweiß. Wegen der etwas unruhigen Luft und des Helligkeitsunterschiedes nicht einfach. ../projects/doublestars/uwe_pilz/sketches/191216theAur.jpg