Messier 101 (M101), also known as the Pinwheel Galaxy, is a spiral galaxy located in the constellation Ursa Major, the Great Bear. The Pinwheel Galaxy has an apparent magnitude of 7.86 and lies at a distance of 20.9 million light years from Earth. It has the designation NGC 5457 in the New General Catalogue.
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Messier 99 (M99), also known as the Coma Pinwheel or Virgo Cluster Pinwheel, is an unbarred spiral galaxy in Coma Berenices. The galaxy is a member of the Virgo Cluster. It has an apparent magnitude of 10.4 and lies at a distance of 55.7 million light years from Earth. Its designation in the New General Catalogue is NGC 4254.
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Messier 88 (M88) is a spiral galaxy located in the Virgo Cluster, in the constellation Coma Berenices. The galaxy lies at an approximate distance of 47 million light years and has an apparent magnitude of 10.4. It has the designation NGC 4501 in the New General Catalogue. Messier 88 occupies an area of 6.9 by 3.7 arc minutes of apparent sky, which corresponds to a spatial extension of 105,000 light years.
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Messier 82 (M82), also known as the Cigar Galaxy, is an edge-on starburst galaxy located in the constellation Ursa Major. The galaxy lies at a distance of 11.4 to 12.4 million light years from Earth and has an apparent magnitude of 8.41. It has the designation NGC 3034 in the New General Catalogue.
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Messier 63 (M63), also known as the Sunflower Galaxy, is a spiral galaxy located in the northern constellation Canes Venatici. The Sunflower Galaxy lies roughly 37 million light years from Earth and has an apparent magnitude of 9.3. Its designation in the New General Catalogue is NGC 5055.
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