Pegasus Dwarf Spheroidal Galaxy
| Pegasus Dwarf Spheroidal Galaxy | |
|---|---|
| Observation data (J2000 epoch) | |
| Constellation | Pegasus |
| Right ascension | 23h 51m 46.3s |
| Declination | +24° 34′ 57″ |
| Redshift | −354 ± 3 km/s |
| Distance | 2.7 ± 0.1 Mly (820 ± 20 kpc) |
| Apparent magnitude (V) | 14.2 |
| Characteristics | |
| Type | dSph |
| Apparent size (V) | 4′.0 × 2′.0 |
| Notable features | - |
| Other designations | |
| Pegasus II, Andromeda VI, Peg dSph, KKH 99, PGC 2807158 | |
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).
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 from the Andromeda Galaxy.
The galaxy was discovered in 1999 by various authors on the Second Palomar Observatory Sky Survey (POSS II) films.
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