Re: [APML] Simeis Tricolor and reverse B&W

[lkt <tan@cox.net>]

Jerry,

 Yes, you right, I changed the designation to Sh2-240. Thank you. I have
not seen Mikkel Steine's list. It's really impressive. I think my red
channel has good SNR but both the blue and green has no registration of
this nebula at all. I think this makes the color version more noisy than
the B&W red channel version.

Loke



Jerry Lodriguss wrote:
> 
> Aweswome Loke.
> 
> That's the best amateur photos I've seen of this supernova remnant.
> 
> I think the catalog designations are Simeis 147 and Sh2-240 though.
> 
> See Mikkel Steine's great resource at:
> 
> http://messier45.com/cgi/tvo/listgen.cgi?l=BN&n=62&std=1&allsky=1
> 
> Jerry
> 
> >Just managed to process a tricolor Schmidt image of Simeis (Sh2-247) a
> >supernova remnant in Taurus. The image was taken last year. Processing
> >it has been a real challenge. The link also includes a B&W reverse video
> >of the red channel. This B&W version shows the faint nebulosity much
> >better than the color version.
> >
> >http://www.starryscapes.com/nebula/simeis.html
> 
> Astronomical photography: http://www.astropix.com
> 
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