Back to photostream

M101

The Pinwheel Galaxy (also known as Messier 101) is a face-on spiral galaxy 21 million light-years away from Earth in the constellation Ursa Major. It was discovered by Pierre Méchain in 1781. M101 is a large galaxy, with a diameter of 170,000 light-years. By comparison, the Milky Way has a diameter of between 100,000 and 120,000 light-years.

 

Optic: RC GSO 8" - Astro Physics telecompressor 0.67X

Mount: Ioptron CEM60 HP

Autoguider: Magzero QHY 5L II, OAG 9mm TS, Phd guiding

Camera: Moravian G2 8300 Filters: 31mm unmounted Optolong

Frames: L 15X420sec - Ha 7nm 18X600sec Bin1 -30°

Camera: QSI 583wsg Filters: 31mm unmounted Astrodon gen. 2

Frames: L 6X600sec Bin1 - RGB 5X600sec each Bin2 -30°

Processing: Pixinsight, Photoshop

APT automation

7,341 views
208 faves
9 comments
Uploaded on April 3, 2022
Taken on March 26, 2022