Hodge, Paul Department of Astronomy, University of Washington, Seattle, Washington.
Last reviewed:August 2020
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The closest spiral galaxy to the Milky Way Galaxy. The name of the Andromeda Galaxy (Fig. 1) derives from its appearance in the constellation of Andromeda. The galaxy is also known as M31 and NGC 224, based on its entries in two widely used catalogs. See also: Andromeda; Astronomical catalogs; Constellation; Messier Catalog; Milky Way Galaxy
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