WordReference Random House Unabridged Dictionary of American English © 2026
Al′pha Centau′ri, 
  1. Astronomya triple-star system that is the brightest celestial object in the constellation Centaurus. Also called Rigel Kentaurus. 
  • Neo-Latin: Alpha of Centaurus

'Alpha Centauri' also found in these entries (note: many are not synonyms or translations):
Barnard's star - Centaurus - Proxima Centauri - Rigel Kentaurus - Rigil Kentaurus

Forum discussions with the word(s) "Alpha Centauri" in the title:


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