[AZ-Observing] Re: 59 Ser, a Green star??

  • From: Andrew Cooper <acooper@xxxxxxxxx>
  • To: az-observing@xxxxxxxxxxxxx
  • Date: Thu, 01 Jun 2006 08:01:09 -0700

Looking back at the classical double star observers;  Webb notes this 
pair as yellow and blue,  John Herschel as orange and green.  I'll have 
to take a look myself when I get a chance (maybe tonight).

Andrew

Steve Coe wrote:

>OK, I know that green stars are supposed to be impossible using just the
>temperature charts and other stellar physics.
> 
>
>However, I am out in my backyard tonight doing multiple stars in Serpens and
>number 59 on the Flamsteed list is pretty obviously green to my eye.  It is
>located at 18 27.2 and +00.2.  This binary consists of a 5.3 and 7.6 mag
>pair, sep 3.8 arcsec at a PA or 318 degrees.  
>
> 
>
>In my 8 inch SCT is just split at 133X and a shows better separation at
>167X.  The pair has good color contrast at both powers.  I see the colors as
>light yellow and medium green or aqua at both magnifications.
>
> 
>
>So, put 59 Ser on your observing list and see if you agree;
>
>Steve Coe
>
>
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>
>
>  
>

-- 


Andrew Cooper
----------------------------------------------------
http://www.siowl.com



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