A quick stack and process from last night of one of my favorite M's. Large theta shaped barred spiral near the 'dipper' and a couple background gals too. Sky conditions very good last night, no wind, seeing good, transparency good, temp falling into the 30's when I finished. So cold that the neighboring orchards started up their giant windmills, sounds like a flock of B29's taking off, I guess, only ever seen one of those beasts.
Data; Meade 16 LX200 at f6.2 w/Starizona reducer/corrector, efl 2500mm, Zwo ASI1600MC-cool, 30/2 min subs, 200 gain, 50 offset, -20C temp, UV/IR filter. Guided with Meade 4 inch
SCT at 1000mm efl, QHY5L-II mono at 4 sec rate. Image captured and stacked in Nebulosity, final in
PS CS5, another 'naked' shot with
OSC, no darks, flats, etc. Posted image edge cropped, and 33% full size.
Clear skies,
Steve