Other Names:
Optics: Borg Astrograph 101ED at f/4.1
Mount: Atlas EQG using The Sky6 and EQMOD
Camera: Canon EOS 50D [ UV/IR filter modification by Hap Griffin ]
Filters: IDAS Light Pollution Suppression (LPS) Filter
Exposure: 55 Mins [11 x 300s at ISO 800]
Accessories: Auto guided with Borg 45ED and Orion Starshoot Auto guider using PHD
Location: Calgary, AB
Date: March 6, 2010
Notes: Processing: Image acquisition with Maxim DSLR. Image calibration, align, and combine in Maxim DSLR. Levels, curves, crop and resize in Photoshop.
Calibrated w/15 Darks, 40 Bias, 22 Flats using light box, Ambient temperature was +2.7C

The M81 Group is a group of galaxies in the constellation Ursa Major that contains the well-known galaxies Messier 81 and Messier 82 as well as several other galaxies with high apparent brightnesses.[1] The approximate center of the group is located at a distance of 3.6 Mpc, making it one of the nearest groups to the Local Group.[1] The group is estimated to have a total mass of (1.03 ± 0.17) × 1012M☉.[2] The M81 Group, the Local Group, and other nearby groups all lie within the Virgo Supercluster (i.e. the Local Supercluster).[3]