New “Species” of Exoplanet Found Orbiting Orange Dwarf Star–Twice the Age of Our Sun

Wolf 503b, an exoplanet twice the size of Earth, has been discovered by an international team of Canadian, American and German researchers using K2 data from NASA’s Kepler Space Telescope that confirmed the star is an old ‘orange dwarf’, slightly less luminous than the Sun but about twice as old, and allowed a precise determination of the radius of both the star and its companion.