A galaxy is a system of stars, stellar remnants, interstellar gas, dust, dark matter, bound together by gravity. The word is derived from the Greek galaxias, literally 'milky', a reference to the Milky Way galaxy that contains the Solar System.
Lists of galaxies
- List of galaxies, general list of galaxies
; Galaxies by type
- List of spiral galaxies
- List of ring galaxies
- List of polar-ring galaxies
- List of quasars
; Galaxies by association
- List of largest galaxies
- List of nearest galaxies
- Satellite galaxies of the Milky Way
; Other characteristics
- List of galaxies named after people
- List of galaxies with richest globular cluster systems
Lists of galaxy agglomerations
- List of galaxy groups and clusters
- List of galaxy superclusters
- List of filaments of galaxies
See also
- Lists of astronomical objects
- List of black holes
- Lists of clusters
- List of voids
- List of the most distant astronomical objects