What is the closest star to Earth besides the sun?
It is the closest star to Sun and the closest star besides Sun to Earth.
It is approximately
(a light year is the distance travelled by light in one year)
Proxima Centauri is a low-mass,Red dwarf star. It is found in the star constellation of Centaurus. It is also known as Alpha Centauri C
The Proxima Centauri is a part of three stars the orbit each other with a size of the Sun
Procima Centauri, at about 4.25 light-years away.
Proxima Centauri is believed to be part of a three-star system whose other two stars are collectively known as Alpha Centauri. The Alpha Centauri stars are each about as massive as the Sun and orbit each other closely. Proxima Centauri is smaller (a red dwarf) and likely orbits around the Alpha Centauri pair.