Messier 109 - Astrophotography with the asi 1600mm Pro in LRGB

Updated: Oct 28, 2019


Messier 109 is a barred spiral galaxy located in the constellation of the big bear, Ursa Major. It was discovered by Pierre Méchain in the year 1781.

Messier 109 occupies the second to last entry in Messier's famous catalog of deep sky objects, in between M108 (seen edge-on and photographed during Episode 12 with M97) and M31's satellite galaxy M110 photographed in Episode 4 of Galactic Hunter.


M109 looks small and is not super bright at magnitude 11. It is