Alpha Centauri B
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Alpha Centauri B (also Rigel Kentaurus B — the foot of the centaur in Arabic) is a star of the Alpha Centauri star system. It is approximately 4.40 light years from Earth's Solar System.
Alpha Centauri B is also known as HD 128621, HR 5460, GCTP 3309.00B, and LHS 51.
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Some facts about Alpha Centauri B
- Parallax: 0.742 arcsecs
- Spectral type: K0-1 V
- Radial velocity: -21 km/s
- Proper Motion: 3.724 arcsecs/year
- Apparent Visual Magnitude: 1.35
- Absolute Visual Magnitude: 5.70
- Luminosity: 0.5 Solar Luminosities
- Diameter: 0.865 times that of the Sun
- Angular diameter: 6.002 milliarcseconds
See also
References
- A Family Portrait of the Alpha Centauri System (http://www.spaceref.com/news/viewpr.html?pid=11016), March 21, 2003.
External links
- Alpha Centauri system (http://www.solstation.com/stars/alp-cent3.htm)fr:Alpha Centauri B