M81

Thu, 22 Sep 2016 12:05:40 -0700

Spiral galaxy in Ursa Major.
Taken at home on 04/10/08, 04/11/08, and 04/17/08.
Meade RCX400 10" scope, ST-10XME camera.
300 seconds/frame for L and Ha, and 120 seconds/frame for RGB. Total time 277 minutes (LRGBHa = 185:20:20:22:30).
Ha picture used only to brighten the star forming regions.