Andromeda Galaxy, M31 is a spiral galaxy 2.5M light years away. At 200,000 light years across it is visible to the naked eye. Although, it is best viewed in your periphery since rod performance is weakest in the center of the human eye. Captured with an unmodified Canon t2i with a 400mm Canon f5.6 L-series lens. Tracking provided by Ioptron Sky-tracker. Session completed early Nobember 2016 in Scofield, UT. 15˚F, M31 30×1. Pre-processed Photoshop CC (2017) Raw. Stacked using DSS. Post-processing within PixInsight.