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 846
NGC 846 (also known as NGC 847) is a barred spiral galaxy located around 235 million light-years away in the constellation Andromeda. NGC 846 was discovered on November 22nd, 1876 by the French astronomer Édouard Stephan, and it has a diameter of around 162,000 light-years. NGC 846 is not known to have much star-formation, and it is not known to have an active galactic nucleus.
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Wikipedia Page: NGC 846
NGC 846 at In-The-Sky website