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NGC 366

Open cluster in the constellation Cassiopeia

Wikipedia contributorsAdapted for Fathomly · View authors
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Source updated September 4, 2026
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NGC 366 is an open cluster located in the constellation Cassiopeia. It was discovered on October 27, 1829, by John Herschel. It was described by Dreyer as a "cluster, small."

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This article is adapted from the Wikipedia article “NGC 366”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

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Related topics

Open cluster

An open cluster is a type of star cluster made of tens to a few thousand stars that were formed from the same giant molecular cloud and have roughly the same age. More than 1,100 open clusters have been discovered within the Milky Way galaxy, and many more are thought to exist.

List of NGC objects (1-1000)

This is a list of NGC objects 1-1000 from the New General Catalogue. The astronomical catalogue is composed mainly of star clusters, nebulae, and galaxies.

Cassiopeia (constellation)

Cassiopeia is a constellation and asterism in the northern sky named after the vain queen Cassiopeia, mother of Andromeda, in Greek mythology, who boasted about her unrivaled beauty. Cassiopeia was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy, and it remains one of the 88 modern constellations today.