What else do you do at 3am on a moonlit night? This was my first go with the ASI1600MM-C on Orion. Getting the camera setting right was the purpose of the exercise. My normal narrowband approach (at 300", Unity Gain) would not work on this bright monster. Eventually settled on Gain 105, Offset 15 (I think it was), and a sub length of 120". This is just a test image, only 11 x120" subs. No Darks, Bias frames, etc, just the skinny 11 subs. I need to shoot some shorter test subs to see if can get a Trapezium mask going but looks like the cloud is coming back. I might go over to LRGB next week as I can accomplish more in the little time available to capture this target this month.
Astrobin links are here:
Detail page:
http://www.astrobin.com/264879/
Full screen:
http://www.astrobin.com/full/264879/0/