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 6115
NGC 6115 is an open cluster in the constellation Norma. It is located 2 degrees southeast of Gamma Normae. It is 3175 light-years distant and thought to be around 870 million years old.
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Sources:
Wikipedia Page: NGC 6115
NGC 6115 at In-The-Sky website