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 7012
NGC 7012 is a large, bright elliptical galaxy located about 380 million light-years away from Earth in the constellation Microscopium. NGC 7012 was discovered by astronomer John Herschel on July 1, 1834. NGC 7012 is also is host to a supermassive black hole with an estimated mass of 4.5 × 109 M☉. NGC 7012 is very large galaxy, with an estimated diameter of nearly 300,000 light years.
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Wikipedia Page: NGC 7012
NGC 7012 at In-The-Sky website