Astronomy Answers: Universe Family Tree: Star Cluster

Astronomy Answers
Universe Family Tree: Star Cluster

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Star Cluster
Star System
Globular Cluster
Galactic Cluster
OB Association
Stellar Stream
50 kpc
5 kpc
50,000 AU
the Galaxy
the Solar System

A star cluster is a group of a few dozen to a few thousand stars that are bound by gravity or by a recent common origin. Star clusters come in different kinds:

Not all stars are part of a recognized star cluster. For instance, the Sun is a solitary star.


[Tree][Galaxy][Star System]

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Last updated: 2021-07-19