Large-Scale Structure
Galaxy Cluster
Hundreds to thousands of galaxies bound by gravity.
The largest gravitationally bound systems, hosting hundreds to thousands of galaxies in hot X-ray emitting gas, with masses up to 10^15 solar masses.
Overview
The largest gravitationally bound systems, hosting hundreds to thousands of galaxies in hot X-ray emitting gas, with masses up to 10^15 solar masses.
See also
Fossil Galaxy Group
A group whose galaxies have already merged into one giant.
Galaxy Group
A small assembly of dozens of galaxies.
Galaxy Wall
A sheet-like concentration of galaxies.
Galaxy Sheet
A thin, sheet-like layer of galaxies.
Great Attractor
A gravitational anomaly pulling galaxies toward it.
Galaxy Supercluster
A vast collection of clusters and groups.