The Pegasus Dwarf Spheroidal (also known as Andromeda VI or Peg dSph for short) is a dwarf spheroidal galaxy about 2.7 million light-years away in the constellation Pegasus. The Pegasus Dwarf is a member of the Local Group and a satellite galaxy of the Andromeda Galaxy (M31).
General information
The Pegasus Dwarf Spheroidal is a galaxy with mainly metal-poor stellar populations. Its metallicity is [Fe/H] ≃ −1.3. It is located at the right ascension 23h51m46.30s and declination 24d34m57.0s in the equatorial coordinate system (epoch J2000.0), and in a distance of 820 ± 20 kpc from Earth and a distance of 294 ± 8 kpc[a] from the Andromeda Galaxy.
The galaxy was discovered in 1999 by various authors on the Second Palomar Observatory Sky Survey (POSS II) films.
See also
- List of Andromeda's satellite galaxies
- Pegasus Dwarf Irregular Galaxy (Peg DIG)
- Pegasus galaxy, the Stargate Atlantis fictional location (probably the Pegasus Dwarf Irregular Galaxy).
Notes
References
External links
- NASA/IPAC Extragalactic Database: Pegasus Dwarf Spheroidal
- Armandroff, Jacoby, & Davies, "Low Surface Brightness Galaxies around M31", Astrophys. J. 118, 1220-1229 (1999).
