M12 Published December 14, 2014 at 806 × 642 in Globular Clusters M12 Image & Equipment Details: Date: 6/1/14 RGB Image Calibrated with bias, flat, and dark frames Processed in PixInsight Temp: -30C Imaging Scope: Explore Scientific 127CF Apochromatic Triplet Imaging Camera: SBIG STF-8300M