Phoenix Dwarf
Galaxy in the constellation of Phoenix From Wikipedia, the free encyclopedia
The Phoenix Dwarf is a dwarf irregular galaxy discovered in 1976 by Hans-Emil Schuster and Richard Martin West and mistaken for a globular cluster.[5][6] It is currently 1.44 Mly away from Earth. Its name comes from the fact that it is part of the Phoenix constellation.
| Phoenix Dwarf Galaxy | |
|---|---|
Phoenix Dwarf by the Very Large Telescope[1] | |
| Observation data (J2000 epoch) | |
| Constellation | Phoenix |
| Right ascension | 01h 51m 06.3s[2] |
| Declination | −44° 26′ 41″[2] |
| Redshift | 60 ± 30 km/s[2] |
| Distance | 1.44 ± 0.07 Mly (440 ± 20 kpc)[3][4] |
| Apparent magnitude (V) | 13.1[2] |
| Characteristics | |
| Type | IAm[2] |
| Apparent size (V) | 4′.9 × 4′.1[2] |
| Notable features | - |
| Other designations | |
| ESO 245- G 007,[2] PGC 6830[2] | |
Characteristics
The Phoenix Dwarf has an inner part of young stars which is stretched in an east-west direction and an outer part of mainly old stars that is stretched north-south. The central region's rate of star formation seems to have been relatively constant across time (Martínez-Delgado et al. 1999). In 1999, St-Germain et al. discovered a H I region of about 105 M☉ just to the west of Phoenix. Its radial velocity is −23 km/s and may be physically associated with Phoenix if it is found to have a similar radial velocity.[7]
References
External links
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