Proxima Centauri is the closest known star to the Sun, located about 4.24 light-years away in the constellation of Centaurus. It is a red dwarf star, part of a three-star system that includes Alpha Centauri A and Alpha Centauri B. Proxima Centauri is of great interest to astronomers because it hosts at least one confirmed exoplanet, Proxima Centauri b, which lies within the star's habitable zone. This small star is much cooler and dimmer than our Sun, making it less visible to the naked eye. Despite its proximity, Proxima Centauri's faintness means it can only be observed with telescopes. The study of this star and its planets could provide valuable insights into the potential for life beyond our solar system.