M81 Bode’s galaxy

The famous Bode’s Galaxy M81 (NGC 3031) is a spiral galaxy located in the constellation Ursa Major about 12 million light years from the Milky Way.

Acquisitions in the city of Amiens, France (Bortle 7 sky) with GSO RC8 @f/8 on Avalon Linear mount and ZWO ASI 294mm camera + LRVB + H Antlia filters.
L: 248x300s bin2
RGB: 12x300s bin2 each
Halpha: 219x300s bin2

Processing with Pixinsight and Photoshop.

Autore: Mathieu Guinot