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 2012
NGC 2012 is a large lenticular galaxy in the Constellation Mensa. It was discovered by John Herschel in 1836. With its distance from the Earth being over 236 million light years, NGC 2012 is not visible to the naked eye, and a large telescope is needed. A probe has never been sent out to study the galaxy.
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Sources:
Wikipedia Page: NGC 2012
NGC 2012 at In-The-Sky website