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Old 13-04-2012, 10:49 AM
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astroron (Ron)
Supernova Searcher

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Join Date: Mar 2005
Location: Cambroon Queensland Australia
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Quote:
Originally Posted by Lester View Post
Hi all, last night I tried for comet Metcalf/Brewington and missed the FOV with the Astrograph. Thought I would still process the stack of exposures to see what I had. Well at the exact postion of galaxy PGC3097159 there is this red object. That galaxy is listed in The Sky6 pro at magnitude 30 and size=0". So way too faint and small to show up here. I thought is may be a nebula, but nothing in my program.

I am sure it is not camera noise as such a large red area hasn't shown up before with the Astro 40D.

Any sensible thoughts welcome.
Lester, you could try NED or SEDS to get the true mag of the galaxy
PGC3097159.
Even the largest of telescopes have trouble getting down to mag 30, so I think "THE SKY" Six is in error.
I think you should not have too much trouble getting down to mag 20 or so in your scope with long exposures.
Cheers
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