Celestron Fastar 8 at f/1.95, PixCel 237. This 46 minute exposure consists of a 600 second (five by 120 seconds Track and Accumulate) luminance file, and three 720 second (four by 180 seconds Track and Accumulate) RGB files. Unguided at -15.23 degrees Celsius. Post processed with CCDOPS v4.10, and combined in Adobe Photoshop.