NGC 51
NGC 51 is a lenticular galaxy in the constellation Andromeda. It has a diameter of 90,000 light-years.[3] The galaxy was discovered on September 7, 1885, by Lewis Swift, who described it as "Pretty faint, pretty small, round, brighter middle."[3] One supernova, SN 2016gxp (type Ia, mag. 18.6), was discovered in NGC 51 on October 5, 2016.[5] See alsoReferences
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