NGC 7331 and Stephan's Quintet

(click image for largest version available)

By Ken Crawford at Rancho Del Sol Observatory using a 20" RCOS Carbon Truss Ritchey-Chrétien Telescope.

RCOS 20" Truss / Paramount ME
Apogee Alta 09000
AstroDon -Clr RGB (2nd Generation) Filters
Lum =10 hours unbinned (Clr filter)
RGB =15 hours 1x1 total unbinned.
MaxDL 5 run by CCD AutoPilot 4
Processed with CCDStack CCDIS and PSCS2