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M81 Group
Galaxy group in Ursa Major and Camelopardalis / From Wikipedia, the free encyclopedia
The M81 Group is a galaxy group in the constellations Ursa Major and Camelopardalis that includes the 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]
Quick Facts Observation data (Epoch J2000), Constellation(s) ...
M81 Group | |
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Observation data (Epoch J2000) | |
Constellation(s) | Ursa Major/Camelopardalis |
Brightest member | M81[1] (pictured) |
Number of galaxies | 34[1] |
Other designations | |
NGC 3031 Group |
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