Hodge, Paul Department of Astronomy, University of Washington, Seattle, Washington.
Last reviewed:October 2019
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The giant spiral galaxy closest to Earth. The Andromeda Galaxy is seen in the constellation of Andromeda, which is visible from Earth in the autumn skies. The galaxy is also known as M31 and NGC 224, based on its entries in two widely used catalogs. See also: Astronomical catalogs; Constellation; Messier Catalog
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