Difference between revisions of "Rigil Kentaurus A"
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Revision as of 00:44, 1 February 2010
Rigel Kentaurus A | |
Stellar characteristics | |
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Constellation | Centaurus |
Right ascension (Epoch J2000) | 14h 39m 36.4951s |
Declination (Epoch J2000) | -60° 50' 02.308" |
Spectral type | G2V |
Distance from Sol | 4.365 ± 0.007 ly |
Other designations | Alpha Centauri A, α Cen A, α¹ Centauri, GJ 559 A, HR 5459, HD 128620, GCTP 3309.00, LHS 50, SAO 252838, HIP 71683 |
Alpha Centauri A or Rigil Kentaurus ("Foot of the Centaur" in Arabic) is the fourth brightest star in the night sky as well as the brightest star in Constellation Centaurus. Like Sol, it is a yellow-orange main sequence dwarf star of spectral and luminosity type G2 V.
(Boilerplate from SolStation.com)
Together with Alpha Centauri B and Proxima Centauri Alpha Centauri A forms a loose trinary system[1], and is one of the closest stars to Sol at a distance of about 4.40 light-years. Alpha Centauri A and B orbit a common point at an average distance of about 23.7 AUs.
Known Places Around Rigel Kentaurus A
Notes
- ↑ There is some debate about wether or not Proxima Centauri is actually part of a trinary system with the others, see SolStation.com for more details.