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.

See Examples For:

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

Proxima Centauri, a red dwarf that is part of the three-star Alpha Centauri system, is our star’s closest neighbor, just four light-years away.

From New York Times Apr. 2, 2022

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

“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

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training