The Alpha Centauri A reference article from the English Wikipedia on 24-Jul-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Alpha Centauri A

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.

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: 1.77 Solar Luminosities
• Diameter: 1.11 times that of the Sun
• Angular diameter ca. .01 arcsec

See also:

• Alpha Centauri, Alpha Centauri B, Proxima Centauri
• List of nearest stars

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