Proxima

British

/ ˈprɒksɪmə /

noun

Also called: Proxima Centauri. a flare star in the constellation Centaurus that is the nearest star to the sun. It is a red dwarf of very low magnitude. Distance: 4.3 light years See also Rigil Kent

"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

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Among these are well-known exoplanets such as Proxima Centauri b, TRAPPIST-1f, and Kepler 186f, along with lesser-known candidates like TOI-715 b.

From Science Daily • Mar. 25, 2026

Imagine, he says, wanting to send a single paperclip to our neighboring star, Proxima Centauri.

From The Wall Street Journal • Jan. 9, 2026

The closest red dwarf to us is Proxima Centauri.

From Space Scoop • Nov. 28, 2025

Jorge Morales de Labra, head of energy firm Proxima Energia, said keeping the reactors on would "discourage investment in renewables".

From Reuters • Jun. 26, 2023

Practice transmissions beamed to Proxima had been attempted, in case human colonization extended that far.

From "Do Androids Dream of Electric Sheep?" by Philip K. Dick

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023