NGC 2403 Space Recent Nebulae Galaxies Star Clusters Solar System Other Facilities Nature People Programs SkyNights DiscoveryDays SkyCamp (Click the image above for larger version) Click here for the largest version.). NGC 2403 Picture Details: Optics             24-inch RC Optical Systems Telescope Camera           SBIG STL11000 CCD Camera Filters              Custom Scientific Dates               February 27th and 28th 2009 Location          Mount Lemmon SkyCenter Exposure          LRGB = 180:60:60:60 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) Credit Line and Copyright        Adam Block/Mount Lemmon SkyCenter/University of Arizona This image was created during a CCD image processing workshop at the Mount Lemmon SkyCenter. For more information visit http://SkyCenter.arizona.edu.