Alpha Centauri, the nearest star system to Earth, is located about 4.2 to 4.4 light-years away. More specifically:
- The two main stars, Alpha Centauri A and B, are roughly 4.35 light-years from Earth.
- Proxima Centauri, the third and faintest member of the system and the closest individual star to us, is slightly closer at about 4.24 to 4.25 light-years away
In distance units, 4.35 light-years correspond to approximately 25 trillion miles (about 40 trillion kilometers)
. Thus, Alpha Centauri is the closest stellar neighbor system, with Proxima Centauri being the closest star after the Sun.
