Proxima Centauri

4.2 ly

Nearest star to the Sun

Confirmed Stars and galaxies · Verified 2026-10-29 · WWV-UN-002

Proxima Centauri is a small red dwarf about 4.2 light-years away, which is around 40 trillion km. Light from it takes more than four years to reach us.

It is part of the Alpha Centauri system, and is too dim to see without a telescope.

Sources

NASA Imagine the Universe
Encyclopaedia Britannica: Alpha Centauri