What characterizes ancient, dense globular clusters regarding their stellar population size?
Answer
Tens of thousands up to a million stars
Globular clusters are identified as one of the two primary varieties of star clusters, distinguished by being ancient, dense, and spherical in shape. Their stellar populations are substantial, often containing tens of thousands of individual stars, and in some cases accumulating up to a million stars bound together in a single, compact region. This contrasts sharply with open clusters, which are younger and more loosely associated. Both types orbit within galaxies, but the sheer density and stellar count of globular clusters represent a significant collection of stellar mass within that galactic environment.
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