The New General Catalogue of Nebulae and Clusters of Stars (abbreviated as NGC) is a catalogue of deep-sky objects compiled by John Louis Emil Dreyer in 1888. The NGC contains 7,840 objects, known as the NGC objects. It is one of the largest comprehensive catalogues, as it includes all types of deep space objects, including galaxies, star clusters, emission nebulae and absorption nebulae.
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NGC 3254
NGC 3254 is a spiral galaxy in the constellation Leo Minor. It was discovered on March 13, 1785, by the astronomer William Herschel. It is a member of the NGC 3254 Group of galaxies, which is a member of the Leo II Groups, a series of galaxies and galaxy clusters strung out from the right edge of the Virgo Supercluster. Two supernovae have been observed in NGC 3254: SN 1941B (type unknown, mag. 15.1) was discovered by Josef J. Johnson on 25 March 1941. [Note: some sources incorrectly list the discovery date as 28 March 1941.] SN 2019np (type Ia, mag. 13.0) was discovered by KÅichi Itagaki on 9 January 2019. This supernova was the brightest observed in the year 2019.
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Wikipedia Page: NGC 3254
NGC 3254 at In-The-Sky website