M71 (NGC 6838) - Globular Cluster in Sagitta
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M71 (NGC 6838)- Globular Cluster in Sagitta
Discovered by Philippe Loys de Cheseaux in 1746 and included by Charles Messier in his catalog of comet-like objects in 1780.
M71 (also known as Messier 71 or NGC 6838) is a globular cluster in the constellation Sagitta. M71 is at a distance of about 13000 light years away from Earth and spans some 27 light years across. The stars in Messier 71, as is usual in such clusters, are relatively old, at around 9 to 10 billion years, and consequently are low in elements other than hydrogen and helium.
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