The Whirlpool Galaxy, Messier 51 (M51), or NGC 5194, is a spiral galaxy in the constellation Canes Venatici (just below the last star in the handle of the Big Dipper asterism). M51 is roughly 23 million light-years away from Earth.
Tech Specs: Meade 12” LX-90, ZWO ASI071mc-Pro, 90 x 60 second exposures, guided using a ZWO ASI290MC and Orion 60mm guide scope. Captured using Sequence Generator Pro and processed using PixInsight. Image date: April 1, 2020. Location: The Dark Side Observatory, Weatherly, PA, USA.