Ceravolo 300 Astrograph, AP1600 mount, RGB + Ha. Total of 10 hours exposure over two nights (I went seriously overboard on Ha - just set it going and went to bed!).
Well done Doug! This is an amazing image as one can see areas of nebulosity. Is the h-Alpha channel able to pick out this nebulosity from the galaxy? What length exposure was h-a taken at? Tim
There's a little over 5 hours of h-alpha. Not that I really needed that much... I just set it to continuously take exposures and went to bed. It was in part a test of the new and improved auto shutdown feature of MaxIm DL. You can see the H-II regions in the red channel, but Ha really makes them pop.
Since it was running unguided I was doing 60 second exposures. Probably could have done longer but it was working well so I left it. I actually had a guide camera on the piggyback FSQ-106... but the focus motor gadget died on me. And the FSQ has a notoriously huge temperature coefficient, so it really needed focusing!
