A
dwarf galaxy is a small
galaxy composed of up to several billion
stars, a small number compared to our own
Milky Way's 200-400 billion stars. The
Large Magellanic Cloud, containing over 30 billion stars, is sometimes classified as a dwarf galaxy.
There are many dwarf galaxies in the Local Group: these small galaxies frequently orbit around larger galaxies, such as the Milky Way, the Andromeda Galaxy and the Triangulum Galaxy.
The Milky Way has 12 known dwarf galaxies orbiting it. See Milky Way for more information.