Science topics: Space ScienceAstronomyUniverseStarsStellar Clusters
Stellar Clusters - Science topic
Star clusters or star clouds are groups of stars. Two types of star clusters can be distinguished: globular clusters are tight groups of hundreds of thousands of very old stars which are gravitationally bound, while open clusters, more loosely clustered groups of stars, generally contain less than a few hundred members, and are often very young.
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