Proxima B (short for Proxima Centauri B) is an Extra-Solar Planet orbiting Proxima Centauri, a Red Dwarf which is part of the triple-star system, Alpha Centauri. Proxima B is known for orbiting in its star's Habitable Zone and for being the nearest known exoplanet to us. It was found in August 2016 through studies of the star's Radial Velocity. It orbits the star in 11 days. Its Orbital Inclination is unknown, limiting our knowledge of its mass: we know only that it is in the range of 1.25 to 3 Earth masses.
Equilibrium Temperature (Teq)