Messier 54, also known as M54 or NGC 6715, is a globular cluster of stars in the constellation Sagittarius, discovered by Charles Messier in 1778. Unlike the great majority of globular clusters, which belong to the Milky Way's own halo, M54 was found in 1994 to actually belong to the Sagittarius Dwarf Spheroidal Galaxy, a small satellite galaxy being tidally disrupted by the Milky Way, making it the first globular cluster confirmed to lie outside our own galaxy. It lies roughly 87,000 light-years from Earth.
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 54
Messier 54 (Wikipedia)
Messier 54, Wikipedia - lead section, catalogue classification
Messier 54 (also known as M54 or NGC 6715) is a globular cluster in the constellation Sagittarius.
Messier 54, Wikipedia - lead section, constellation
Messier 54 (also known as M54 or NGC 6715) is a globular cluster in the constellation Sagittarius.
In Group: Globular Clusters, Lead sentence
Messier 54 (also known as M54 or NGC 6715) is a globular cluster in the constellation Sagittarius.
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