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13.16: Galactic Groups

Last updated

Nov 20, 2024
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- 13.15: The Ages of Galaxies and What that Reveals
- 13.17: Dark Matter

Lumen Learning
Lumen Learning

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Galaxies appear to assimilate in groups throughout the Universe. For example, the Milky Way and Andromeda galaxies are members of The Local Group, more than 54 gravitationally bound galaxies, most are dwarf galaxies. Smaller galactic groups are a part of galaxy superclusters. The Local Group is part of the Virgo Supercluster, composed of at least 100 galaxy groups and clusters.

Three-dimensional representations show the locations of galaxies in the Local Group and the Virgo Supercluster. — CC BY-SA 3. 0 | Image courtesy of Wikimedia Author: Andrew Z. Colvin.

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