Messier 81 (North Up, East Left)
Messier 81, also known as NGC 3031, is agalaxy of type Sab in the constellation of Ursa Major.  It has a diameter of ~60,000 light-years.  In the top image, the galaxy to the north is Messier 82and the galaxy to the east-northeast is NGC 3077.  In the bottom image, the faint galaxy to the east is PGC 28757. The top and bottom images comprise 6 x Luminance (300 seconds each), 0.101m f/5.4 Tele Vue refractor with FLI ML16200 camera at an altitude of 45 degrees on 29 December 2016.  The fields of view of the top and bottom images are 132’ x 132’ (2.2 degrees square) and 42’ x 42’, respectively.
Hills Observatory: 1 January 2013 to 6 May 2018
COMETS COMETS
DEEP SKY DEEP SKY