Carina Dwarf Spheroidal Galaxy

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Carina Dwarf Spheroidal Galaxy
Carina Dwarf Galaxy.jpg
Carina Dwarf Spheroidal Galaxy image made using observations from the Wide Field Imager on the MPG/ESO 2.2-metre telescope at La Silla, and from the Victor M. Blanco 4-metre telescope at the Cerro Tololo Inter-American Observatory.[1] Credit: ESO/G. Bono & CTIO
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
See also: Galaxy, List of galaxies

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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  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  7. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  8. ↑ The Satellite Galaxies
  9. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  10. ↑ Lua error in package.lua at line 80: module 'strict' not found.

External links

Coordinates: Sky map 06h 41m 36.7s, −50° 57′ 58″


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