"Winter Albireo" Double - h 3945 In Canis Major
Posted 10 March 2013 - 09:51 PM
h 3945 (145) mags. 5.0/5.8; Sep. 26.8"; PA 52°; Orange/Blue; RA 07h16.6" DEC -23°19'
Posted 11 March 2013 - 05:09 AM
Posted 11 March 2013 - 06:48 AM
Posted 11 March 2013 - 06:46 PM
Seen h3945 numerous times. A most impressive double.
Same here--it's one of my wintertime favorites that I keep coming back to every year and never get tired of observing.
Posted 11 March 2013 - 10:55 PM
NGC 2362, the Tau CMa cluster has always been a favorite of mine and is just a couple wide field views south of the double. Tau itself is a nice multiple star system as well. I always visit both objects when in the area.
Posted 11 March 2013 - 11:01 PM
Posted 12 March 2013 - 12:22 AM
Posted 12 March 2013 - 02:48 AM
Here are a few more links to articles mentioning the Winter Albireo:
Posted 12 March 2013 - 03:35 AM
Name according to WDS catalogue is HJ3945.
Posted 12 March 2013 - 06:08 PM
Posted 15 March 2013 - 10:25 PM
Posted 16 March 2013 - 10:02 AM
Posted 16 March 2013 - 06:44 PM
Posted 18 March 2013 - 03:14 PM
Thank you Peter for reminding me.
Last night,in a deep freezing cold,I trained my 125mm Dobsonian on Winter Albireo at 34x/Sirius 25mm Plossl.
Easy split,nice colors,beautiful pair.
Than I put my cheapo Sakura 9x60mm binocular on my home-made binocular stabilizer and I try to split this double star.
Unlike Summer sister star,Winter Albireo resisted to split.
But I saw an apendix in the first quadrant, somewhere at 11 o'clock,glued to the main star,without allowing black space between components;this happen especialy when I was leaning with the backboard of the stabilizers against the brick fence.
The setup is visible in the last pic here:
The rest of my observing session was a failure.
Porrima,Algieba, Alula Borealis and Delta Gem offered some comfort,showing a nice split.
Iota Leonis,52 and 32 Ori and Alnitak didn't split.
Off topic:on double stars and Jupiter alike,my new Simetric Solid ocular of 12.8mm focus,made by my friend Silviu showed the most contrast.It was the only ocular showing elongation at Zeta Ori.
SS (Simetric Solid) ocular is a derivation of Tolles ocular,it is a solid version of Plossl.Just it don't have an air gap and it have only three lenses,all glued.
Posted 18 March 2013 - 03:43 PM
Enjoyed your report. The stars that you couldn't split are difficult for me when the temps are cold even tho the sky is very transparent. My double star experience in cold weather observing has not been good. The clear cold air is usually unstable. Sometimes going to lower aperture in these conditions improves my odds for success.
Best wishes, Bill
Posted 24 March 2013 - 05:10 PM
Posted 28 March 2013 - 11:07 AM
Posted 30 March 2013 - 11:51 AM
Another striking yellow/blue pair is 24 Coma Berenices.
Posted 09 April 2013 - 06:21 PM
It's the second object on my list this evening. Herschel's Wonder star is first then Tau CMa cluster. I'm very far behind on my double star, triple star and star cluster work. N.A.S.A. keeps calling me for the latest data.
We astronomers don't 'accidently find' objects. We discover them.
Posted 09 April 2013 - 08:18 PM
I have Jupiter's Ghost in view right now. Waiting for the neighbor's smoke to dissipate. He's a...
Posted 12 June 2013 - 08:07 PM