Carina Dwarf Spheroidal Galaxy
Carina Dwarf Spheroidal Galaxy | |
---|---|
Observation data (J2000 epoch) | |
Constellation | Carina |
Right ascension | 06h 41m 36.7s[2] |
Declination | −50° 57′ 58″[2] |
Redshift | 230 ± 60 km/s[2] |
Distance | 330 ± 30 kly (100 ± 10 kpc)[3][4] |
Type | E3[2] |
Apparent dimensions (V) | 23′.4 × 15′.5[2] |
Apparent magnitude (V) | 11.3B[2] |
Notable features | - |
Other designations | |
Carina Dwarf,[2] PGC 19441,[2] ESO 206-G20 | |
The Carina Dwarf Spheroidal Galaxy is a dwarf galaxy in the Carina constellation. It was discovered in 1977 with the UK Schmidt Telescope by Cannon et al.[5][6] The Carina Dwarf Spheroidal galaxy is a satellite galaxy of the Milky Way and is receding from it at 230 km/s.[2] The diameter of the galaxy is about 1600 light-years, which is 75 times smaller than the Milky Way.[7] Most of the stars in the galaxy formed 7 billion years ago,[8] although it also experienced bursts of star formation about 13 and 3 billion years ago. In other words, the galaxy remained quiescent for 4 billion years after its first burst of star formation.[9] It is also being tidally disrupted by the Milky Way galaxy.[10]
References
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- ↑ The Satellite Galaxies
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External links
- Carina Dwarf at SEDS
- Observations of Tidal Disruption of the Carina Dwarf Spheroidal Galaxy
- The Carina Dwarf on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Coordinates: 06h 41m 36.7s, −50° 57′ 58″
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