Galaxy
Brightest Cluster Galaxy (BCG)
The dominant galaxy of a galaxy cluster.
The most luminous galaxy in a cluster, almost always a giant elliptical at or near the cluster centre.
Overview
The most luminous galaxy in a cluster, almost always a giant elliptical at or near the cluster centre.
See also
Triangulum Galaxy (M33)
Third-largest galaxy in our Local Group.
Lenticular Galaxy
A disc galaxy without spiral arms.
Irregular Galaxy
A galaxy with no clear shape or symmetry.
Dwarf Galaxy
A small galaxy with a few billion stars or fewer.
Dwarf Elliptical
A miniature elliptical galaxy.
Dwarf Spheroidal
An extremely faint, diffuse dwarf galaxy.