PH1 or Kepler - 64b is an exoplanet, which was established in October 2012 by two amateur astronomers Kian Jek and Robert Gagliano as part of the Planet Hunters project and with measured data from the Kepler mission of NASA. It is a gas giant orbiting in the quadruple star system Kepler - 64 about two stars, the stars and the planet by two other stars are more distant orbits. The planet is about the size of Neptune.