Astrophysics (index)

Satellite Galaxy

(galaxy that orbits a larger galaxy)

A Satellite Galaxy is a small Galaxy, often a Dwarf Galaxy, orbiting a larger galaxy. A number of galaxies in the Local Group (LG) are satellites of the Milky Way or Andromeda (M31). Some of the 30 known satellites of the Milky Way:

Among Andromeda's satellites:

  • M32
  • M110
  • NGC 185
  • NGC 147

Satellites in the Local Group are still being discovered and Dwarf Galaxies are even harder to identify in more distant groups and clusters.

(galaxy type)

Referenced by:
Dwarf Galaxy
Large Magellanic Cloud (LMC)
Sagittarius Dwarf Elliptical Galaxy (Sgr dE)