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mathteacher
Carpal Tunnel
Reged: 05/13/07
Posts: 2060
Loc: SF Bay Area
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There is a bright star about 0.5 degrees Southwest of Jupiter. Is it a double? According to stellarium, it is not, but I keep seeing a blue component due north of the yellow primary. Am I being tricked by the atmosphere, or my eyes?
Thanks!
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Regards, Mr. Wang . . . . . . . My gallery . . . . . . . I'm a refractor guy!
CR 150-HD - The Hammer, Vixen ED100sf - The Skipper, Orion ST80 - The Pug, Orion 7x50 Scenix
Meade DSI Color, Vixen Porta Mount, Vixen Super Polaris, 2" pipe mount
Please join the International Dark Sky Association
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RLTYS
Carpal Tunnel
Reged: 12/18/04
Posts: 2159
Loc: New York (Long Island)
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Maybe an optical double or a chance alignment of two unrelated stars.
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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Cotts
Just Wondering
Reged: 10/10/05
Posts: 912
Loc: Richmond Hill, Ontario
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I assume you mean the 4.5 mag star which would be iota Capricornae. WDS lists nothing for this star. Starry Night's database says it is single. When I zoom in on the star in Starry night no field star appears, either. What separation was the pair? What magnitude was the bluish companion? PA of the companion? There's a remote chance you have caught an asteroid..... or a Nova!?!?
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David Cotterell
14th Floor Observatory
Richmond Hill, Ontario
200 mm Intes f/10 Mak-Cass
80mm WO Zenithstar FD
66mm WO ED
Losmandy G-11 mount with Gemini
Ioptron minitower
Canon XSi
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cpsTN
Pooh-Bah
Reged: 04/26/07
Posts: 1205
Loc: Tennessee (37129) 36N 86W
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Although, I don't believe in chance alignments, I am now curious about it.
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Charles P. Sands
Observing since 12/29/86
8" f/5.9 dobsonian (Zhumell DSH-8), with 8x50 RACI
70mm f/5 achromatic refractor (Orion GoScope)
GSO plossls (12 15 20 40), Orion barlows (2x 3x)
10x50 Bushnell Falcon binos
15x70 Celestron StarMaster binos
S&T's POCKET SKY ATLAS
Kodak EasyShare Z915 digital camera
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The heavens declare the glory of God;
and the firmament sheweth His handywork
Psalm 19:1
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mathteacher
Carpal Tunnel
Reged: 05/13/07
Posts: 2060
Loc: SF Bay Area
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Thanks for replies, gentlemen. Cotts, I think that is the one I saw. Like I said, Stellarium said it was not a double, either. To my eye, it looked like the kind of split you get with delta cygni, where the companion is snug up against the primary. I was using my 100ED... perhaps the star showed spurious color because it was low in the atmosphere with poor seeing, gave the effect of a companion star.
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Regards, Mr. Wang . . . . . . . My gallery . . . . . . . I'm a refractor guy!
CR 150-HD - The Hammer, Vixen ED100sf - The Skipper, Orion ST80 - The Pug, Orion 7x50 Scenix
Meade DSI Color, Vixen Porta Mount, Vixen Super Polaris, 2" pipe mount
Please join the International Dark Sky Association
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Dean Norris
sage
Reged: 11/05/08
Posts: 431
Loc: Santa Cruz, Ca
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I observed Jupiter last night and noticed 3 stars in the field of view. 2 of them were very faint. The third one was bright but did not appear double in my scope. It was fun checking this out. Thank you for your post.
Dean
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1971 10" Cave Newtonian F/6
MoonLite CR Focuser Telrad Finder 8x50 finder
TV 40mm, 32, 20, 7.4, Meade 6mm, UO 5mm, Meade 2x Barlow
7x50 Binoculars
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