I took this last night from my light polluted driveway.
15 subframes of LRGB, each of 10 minutes, all 1 x binning.
2.5 hours total integration time.
Darks flats & bias frames added.
8" Newt at f6, QHY9 camera at -30°C, OAG with Lodestar.
I used an Astronomik CLS-CCD filter for all exposures
in the hope to see through the pollution but
I would have needed more subframes to cancel the noise out.
10 minute subframes were required to get enough signal
so that limited the number of subframes.
The result was a little disappointing as I still didn't have my
coma corrector properly spaced.
It is more difficult to find the proper spacing than what I thought
& explains the eggy stars.
Link to larger version here:
http://www.flickr.com/photos/2471943...ream/lightbox/