Alpha Centauri Bb

Alpha Centauri Bb is an exoplanet that orbits the star Alpha Centauri B, one of the three stars in the Alpha Centauri star system, which is located approximately 4.37 light-years away from Earth. It is notable for being one of the closest known exoplanets to our solar system. Discovered in 2012, Alpha Centauri Bb is classified as a "super-Earth," a type of planet that is larger than Earth but smaller than Neptune.