IC 5146: The Cocoon Nebula Picture Details: Optics 24-inch RC Optical Systems Telescope Camera SBIG STL11000 CCD Camera Filters Custom Scientific Dates June 17th 2010 Location Mount Lemmon SkyCenter Exposure LRGB = 165:50:40:50 minutes Acquisition ACP Observatory Control Software (DC-3 Dreams),TheSky (Software Bisque), Maxim DL/CCD (Cyanogen) Processing CCDStack (CCDWare), Mira (MiraMetrics), Maxim DL (Cyanogen), Photoshop CS3 (Adobe) Guest Astronomers: Bill Stoffers Credit Line and Copyright Adam Block/Mount Lemmon SkyCenter/University of Arizona