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Ursa Major Cluster
Galaxy cluster of the Virgo Supercluster From Wikipedia, the free encyclopedia
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The Ursa Major Cluster (Ursa Major I Cluster, UMa I ClG) is a spiral-rich galaxy cluster of the Virgo Supercluster.
 | This article relies largely or entirely on a single source. (June 2017) |
Some of its largest members are NGC 3631, NGC 3953, M109 on North (M109 Group) and NGC 3726, NGC 3938, NGC 4051 on South.[1]
The Ursa Major cluster is located at a distance of 18.6 megaparsecs (60 million light-years) and contains about 30% of the light emitted but only 5% of the mass of the nearby Virgo Cluster.[1]
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