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 6342
![](https://upload.wikimedia.org/wikipedia/commons/thumb/f/f6/NGC_6342_hst_11628_R555B438.png/600px-NGC_6342_hst_11628_R555B438.png)
NGC 6342 is a globular cluster located in the constellation Ophiuchus. Its Shapley–Sawyer Concentration Class is IV, and it was discovered by the German-born British astronomer William Herschel on 28 May 1786. It is at a distance of 28,000 light years away from Earth. NGC 6342 is classified as metal-rich, yet has only one generation of stars.
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![](https://in-the-sky.org/image.php?style=hugeteaser&userimg=19910715_115819_4e8911e5caa4.png)
Sources:
Wikipedia Page: NGC 6342
NGC 6342 at In-The-Sky website