Messier 75


This is Messier 75. It’s a globular cluster, a spherical collection of stars bound together by gravity. It’s around 67,000 light-years away. The majority of the cluster’s 400,000 stars are in its core, making it is one of the most densely packed clusters ever found. It’s extremely bright,180,000 times brighter than the Sun.

Image Credit: NASA / ESA

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