Science Fair Project Encyclopedia
Categories: Dwarf galaxies | Irregular galaxies | Local Group | Pegasus constellation | UGC objects | Andromeda Subgroup
Pegasus Dwarf Irregular Galaxy
The Pegasus Dwarf Irregular Galaxy (also known as UGC 12613, DDO 216, A2304, Peg DIG, or the Pegasus Dwarf) is an irregular galaxy and a dwarf galaxy in the Pegasus constellation. It was discovered by A.G. Wilson in the 1950s. The Pegasus Dwarf is a companion of the Andromeda Galaxy in the Local Group.
General information
The Pegasus Dwarf is a galaxy with mainly metal poor stellar populations. It is located at right ascension 23h28m36.25s and declination +14d44m34.5s in the equatorial coordinate system (epoch J2000.0).
Pegasus Dwarf Spheroidal was discovered in the 1950s. In 1975 Tully & Fischer determined that it was part of the Local Group. The metallicity and the related distance estimate has been subject to discussions in the scientific literature, with varying results.
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