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Edwin Quiroga
professor emeritus
Reged: 01/31/08
Posts: 612
Loc: Miranda, Venezuela
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Hi my friends!
I was scanning Cepheus tonight and close (north-east?) to a double star that I believe to have identified as HD208947 I have seen a curious triple star in a row, with the three components very faint.
I don´t know anything about multiple stars, but it looks to me like a real triple star in a row, as an ellipsis (...)
Anybody knows something about this triple star?
Best regards!
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TeleVue 85 w/FeatherTouch
Televue Panoptic 35
Pentax XW (3.5, 5, 7, 10, 14, 20)
Pentax XO 2.58
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RLTYS
Carpal Tunnel
Reged: 12/18/04
Posts: 2159
Loc: New York (Long Island)
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Edwin
According to the SIMBAD Astronomical Database HD208947 is a spectroscopic binary. There are 23 identifiers for this object but I'm not sure they will give you the info you need.
Hope this helps.
Rich (RLTYS)
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10" F4.8 Refl.
4" F5 Refr. (Genesis)
3" F4 Celestron FirstScope
50mm F12 Refr. (Tasco #6TE-5)
12x63 and 10x50 Binoculars.
"I want to do more then just look."
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Edwin Quiroga
professor emeritus
Reged: 01/31/08
Posts: 612
Loc: Miranda, Venezuela
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Hi Rich!
Spectroscopic binary? So, it is not possible that I had seen the triple star close HD208947, 'cause I actually could see a wide binary next to the triple. Ok, another clue... I was searching for NGC 7142 open cluster. So, my enigmatic "triple star in a row" is in this area at Cepheus.
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Edwin Quiroga
professor emeritus
Reged: 01/31/08
Posts: 612
Loc: Miranda, Venezuela
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Ok!
I put the Google Earth Sky... I believe to have found the triplet at this coordinates:
RA: 21h.55m.59s.
Dec. 66º26´15.10´´
But it is not labeled!
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TeleVue 85 w/FeatherTouch
Televue Panoptic 35
Pentax XW (3.5, 5, 7, 10, 14, 20)
Pentax XO 2.58
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RLTYS
Carpal Tunnel
Reged: 12/18/04
Posts: 2159
Loc: New York (Long Island)
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Edwin
You could go to the "Simbad Astronomical Database" type in your coordinates, you listed, and see what doubles, if any, show up.
Rich (RLTYS)
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10" F4.8 Refl.
4" F5 Refr. (Genesis)
3" F4 Celestron FirstScope
50mm F12 Refr. (Tasco #6TE-5)
12x63 and 10x50 Binoculars.
"I want to do more then just look."
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Edwin Quiroga
professor emeritus
Reged: 01/31/08
Posts: 612
Loc: Miranda, Venezuela
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Thanks Rich!
Mmm yes, I just to feed Simbad with the coordinates and it yields three objects around: three stars, but any is said being a triple system...
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GlennLeDrew
Pooh-Bah
Reged: 06/18/08
Posts: 1304
Loc: Ottawa, Ontario, Canada
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I believe this is the same linear trio I see every time I scan Cepheus with my binos. If it is, and i being so easily resolved, I'd say with some confidence that it's merely a chance alignment of unrelated stars.
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Home-made 11X50 right angle bino, 8.1 deg. FOV
Modified 26X100 bino, 3.5 deg. FOV
Home-made Mk II RA bino, using interchangeable objectives and eyepieces
My Gallery
Mediocre minds discuss people. Good minds discuss events. Great minds discuss ideas.
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markan
super member
Reged: 07/13/09
Posts: 126
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With my planetarium software, I can see 3 stars all neatly lined up
SAO 19746 Star Cep 21h 55.8m +66° 26'
HD 208743 Star Cep 21h 55.9m +66° 26'
SAO 19749 Star Cep 21h 56.0m +66° 27'
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