Messier 39, also known as M39, NGC 7092 or the Pyramid Cluster, is an open cluster of stars in the constellation Cygnus, about two degrees south of the star Pi Cygni and some nine degrees east-northeast of Deneb. It was discovered by Guillaume Le Gentil in 1749 and added to Charles Messier's catalogue in 1764, and it spans an angular diameter about the size of the full Moon, centered roughly 1,010 light-years away.
Facts
Classification
Constellation Discovery Year In the Other Atlases
In Constellation
Also in Divinity Atlas: the constellation this subject lies in.
Sources
1. Wikipedia (space and spaceflight articles)
Wikimedia Foundation
2. Wikidata: Messier 39
Messier 39 (Wikipedia)
Messier 39, Wikipedia - lead section, catalogue classification
Messier 39 or M39, also known as NGC 7092, is an open cluster of stars in the constellation of Cygnus, sometimes referred to as the Pyramid Cluster.
Messier 39, Wikipedia - lead section, constellation
Messier 39 or M39, also known as NGC 7092, is an open cluster of stars in the constellation of Cygnus, sometimes referred to as the Pyramid Cluster.
In Group: Open Clusters, Lead sentence
Messier 39 or M39, also known as NGC 7092, is an open cluster of stars in the constellation of Cygnus, sometimes referred to as the Pyramid Cluster.
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