Dictionary.com
Thesaurus.com

Alpha Centauri system

British  
/ sɛnˈtɔːrɪ /

noun

  1. Also called: Rigil Kent.  a star system comprising the binary star Alpha Centauri A and B and Proxima Centauri (also called Alpha Centauri C ), which is 0.1 light years closer to the sun. Visual magnitude: 0.01 (A), 1.33 (B); spectral type: G2V (A); distance from earth: 4.3 light years See also Proxima

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The group became stranded on a distant planet after their ship, the Jupiter 2, went off course en route to colonize a planet in the Alpha Centauri system.

From Los Angeles Times • Oct. 14, 2023

She is unaffiliated with the study, but her work with her student Lily Zhao has placed the best-yet constraints on the planets that may or may not exist in the Alpha Centauri system.

From Scientific American • Feb. 10, 2021

The only stars closer are the triplet stars of the Alpha Centauri system, which is mainly visible in the southern sky.

From Washington Post • Nov. 14, 2018

Proxima Centauri belongs to a trio of stars in the Alpha Centauri system.

From The New Yorker • Aug. 24, 2016

“You know,” I said, “if we were on one of the planets in the Alpha Centauri system, looking toward Earth, we’d see Jesse still alive.”

From "We Are the Ants" by Shaun David Hutchinson