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Alpha Centauri

Star system in the Centaurus constellation

Alpha Centauri is a star system in the southern constellation of Centaurus. It consists of three stars: Rigil Kentaurus, Toliman, and Proxima Centauri. Proxima Centauri is the closest star to the Sun at 4.2465 light-years (ly), which is 1.3020 parsecs (pc).

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Timeline
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  • 1592Robert Hues brings Alpha Centauri to the attention of European observers in his work "Tractatus de Globis".
  • 1603Johann Bayer gives α Centauri its system designation.
  • 1669The name Toliman originates with Jacob Golius' edition of Al-Farghani's Compendium.
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