M81a Published December 13, 2014 at 1200 × 921 in Galaxies M81 & M82 Image & Equipment Details: Date: 5/31/14 Calibrated with bias, flat, and dark frames Processed in PixInsight Temp: -30C Imaging Scope: Explore Scientific 127CF Apochromatic Triplet Imaging Camera: SBIG STF-8300M Annotated Image: