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Messier 91

Galaxy in Coma Berenices · 63 million light-years

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TypeGalaxy
ConstellationComa Berenices
Distance63 million light-years
Apparent magnitude11
Apparent size5.5′ (arc-minutes)
Also known asM91 · NGC 4548
Messier 91 is a galaxy (also catalogued as NGC 4548) in the constellation Coma Berenices — an island of billions of stars far beyond our own Milky Way. It was recorded by Charles Messier in his famous catalogue of 110 deep-sky objects. It spans roughly 5.5 arc-minutes on the sky. At about magnitude 11, it is a fainter object that rewards a moderate telescope and dark skies.

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