Globular Star Clusters
Globular Star Clusters Click icon to view globular clusters of Messier's catalog Messier's Globular Clusters; Links The icon shows 47 Tucanae (NGC 104). Globular clusters are gravitationally bound concentrations of approximately ten thousand to one million stars, spread over a volume of several tens to about 200 light years in diameter. The first globular cluster discovered, but then taken ...
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