"Messier 33" Picture Details: Optics 32-inch Schulman Telescope Camera SBIG STx 16803 CCD Camera Filters AstroDon GenII Dates November 2012 and October 2013 Location Mount Lemmon SkyCenter Exposure LRGB = 8:2:2:2 Hours Acquisition TheSky (Software Bisque), Maxim DL/CCD (Cyanogen), ACP (DC3 Dreams) Processing CCDStack (CCDWare), Maxim DL (Cyanogen), Photoshop CS5 (Adobe), PixInsight Credit Line and Copyright Adam Block/Mount Lemmon SkyCenter/University of Arizona Creative Commons License The image found on this page (only) is licensed under a Creative Commons Attribution-ShareAlike 3.0 United States License. Although larger versions of this image are available, they are NOT to be used without the expressed permission of Adam Block. .