My final bit of processing from a recent dark sky visit.
The Bubble Galaxy NGC 3521. Kinda cool that the shell is apparently the remnants of cannibalised satellite galaxies
About 9 hours of luminance and 4.5 RGB. RC8 and ASI1600MM-C on a Mach1.
Full res on
Astrobin.
Comments/suggestions welcome.
Edit: Oh, and it must be pointed out that it's a flocculent spiral. Great word!!