"M91 Optics 32-inch Schulman Telescope (RC Optical Systems) Camera SBIG STX 16803 CCD Camera Filters AstroDon Gen II Dates January-March 2014 Location Mount Lemmon SkyCenter Exposure LRGB = 7:3:3:3 Hours Acquisition ACP Observatory Control Software (DC-3 Dreams), Maxim DL/CCD (Cyanogen), FlatMan XL (Alnitak) Processing CCDStack (CCDWare), Photoshop CC (Adobe), PixInsight Credit Line and Copyright Adam Block/Mount Lemmon SkyCenter/University of Arizona .