Proxima Centauri b (or Proxima b), sometimes referred to as Alpha Centauri Cb, is an exoplanet orbiting within the habitable zone of the red dwarf star Proxima Centauri, … See more

Proxima b's parent star Proxima Centauri is a red dwarf, radiating only 0.005% of the amount of visible light that the Sun does and an average of … See more

As of 2021 , Proxima Centauri b has not yet been directly imaged, as its separation from Proxima Centauri is too small. It is unlikely to transit … See more

Proxima Centauri had become a target for exoplanet searches already before the discovery of Proxima Centauri b, but initial studies in 2008 and … See more

Distance, orbital parameters and age
Proxima Centauri b is the closest exoplanet to Earth, at a distance of about 4.2 ly (1.3 parsecs). It orbits Proxima Centauri every … See more

Climate
Proxima Centauri b is located within the classical habitable zone of its star and receives about 65% … See more

From Proxima Centauri b, the binary stars Alpha Centauri would be considerably brighter than Venus is from Earth, with an apparent … See more