Stellar Closeup

Alpha Centauri

Our closest neighboring star system consists of three suns, one of which is very much like our own Sol.

These three suns of Alpha Centauri are currently thought to be far older than our own by as much as two billion years. It is not yet known whether these suns have planets, but if there is an Earth-like world in their midst, it is likely to be much more mature than our own world.

System Vitals
Including temperature, mass, radius, and more for the three suns of Alpha Centauri.

Sky Map and Alien Skies™
How to find Alpha Centauri in our skies, plus what the night skies look like there.

3D View
Where to find Alpha Centauri in relation to its neighbors.

Planets
Specs on any known planets, plus the "eco-zone" of Alpha Centauri — where Earth-like worlds might exist.