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Cluster

M80, Globular Cluster in Scorpius

Target Type R. A. Dec. Constellation Magnitude Size M80 (NGC 6093) Globular Cluster 16h 17m 02s -22° 58′ 34″ Scorpius +7.3 10.0 arcmin Overview This bright, big, dense cluster was discovered by Charles Messier in January 1781. As with so many of his cluster discoveries, Messier believed that M80 was a ‘nebula without a star’ …

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M72, Globular Cluster in Aquarius

Target Type R. A. Dec. Constellation Magnitude Size M72 (NGC 6981) Globular Cluster 20h 53m 28s -12° 32′ 14″ Aquarius +9.8 6.6 arcmin Overview The 72nd entry in Messier’s catalog is the faintest of all the globular clusters listed. Just six arcminutes wide and shining fainter than magnitude 9, this is an easy object to …

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