Pinwheel Galaxy M101

The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on spiral galaxy 21 million light-years (6.4 megaparsecs)^[3] away from Earth in the constellation Ursa Major. 

Planewave CDK17 F4.5, ZWO ASI2600MC Duo, Paramount MEII mount with absolute encoders. Unguided 2 hour image with N.I.N.A. at Desert Astro Observatory in Sierra Vista Dark skies. 5/28/24 Processed in Pixinsight and Photoshop.