Alpha Centauri A
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Alpha Centauri A is a star of the star system Alpha Centauri. It is approximately 4.36 light-years from Earth's Solar System. It is also the brightest of the three stars in the star system.
Alpha Centauri A is also known as HD 128620, HR 5459, CP -60°5483, GCTP 3309.00A, and LHS 50.
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Some facts about Alpha Centauri A
- Parallax: 0.742 arcsecs
- Spectral type: G2 V
- Radial velocity: -25 km/s
- Proper Motion: 3.71 arcsecs/year
- Apparent Visual Magnitude: -.01
- Absolute Visual Magnitude: 4.34
- Luminosity: 1.519 Solar Luminosities
- Diameter: 1.227 times that of the Sun
- Angular diameter about 8.512 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 A