Alpha Centauri (α Centauri, α Cen, or Alpha Cen) is a star system in the southern constellation of Centaurus. It consists of three stars: Rigil Kentaurus (α Centauri A), Toliman (α Centauri B), and …

Nov 14, 2025 · Alpha Centauri, triple star system that contains Proxima Centauri, the closest star to the Sun, about 4.2 light-years distant. The system is the third brightest star in the sky. The nearest …

Jun 13, 2023 · At 4.3 light-years away, Alpha Centauri A and B are the nearest Sun-like stars to our solar system. They orbit with Proxima Centauri as a triple star system.

Sep 9, 2025 · Alpha Centauri (α Cen) is a triple star system located 4.344 light-years away in the constellation Centaurus. It is the nearest star system to the Sun and the third brightest stellar point of …

Mar 5, 2023 · Alpha Centauri is the closest star system to Earth and is made up of three stars and several exoplanets. We explore our stellar neighbors in more detail here.

Apr 16, 2025 · Bottom line: Alpha Centauri is two binary stars that are sunlike stars. Plus, there’s a third star that’s gravitationally bound to them named Proxima Centauri.

Alpha Centauri Ab (also known as Rigil Kentaurus b, or originally as Candidate 1) is a candidate exoplanet that was first directly imaged around Alpha Centauri A in 2019 and reported in February …

Aug 7, 2025 · Visible only from Earth's Southern hemisphere, the Alpha Centauri system is made up of the binary Alpha Centauri A and Alpha Centauri B, both sun-like stars, and the faint red dwarf star …

Jul 27, 2024 · So, while humans will probably never reach Alpha Centauri, it's possible that spacecraft designed to go a much smaller fraction of the speed of light could reach these stars in a human lifetime.

Jun 6, 2018 · Alpha Centauri is a triple star system located just over four light years, or about 25 trillion miles, from Earth. While this is a large distance in terrestrial terms, it is three times closer than the …