Messier 81, Messier 82, and NGC 3077 form this trio. Another faint galaxy, PGC 28225 of magnitude 15.1, appears on the top left.
Date: November 28, 2011
Constellation: Ursa Major
Location: Dominion Astrophysical Observatory, Victoria, BC
Optics: TeleVue NP-127is used at f/5.2 with large field corrector
Mount: Paramount ME, guided using PhD
Camera: Hutech modified Canon EOS 5D Mark II
Exposure: 25 light frames of 180 seconds, ISO 800
Processing: Light frames calibrated with dark and flat frames in ImagesPlus. Light frames normalized and combined using MinMax Excluded. Image cropped.