A supermoon is the coincidence of a full moon or a new moon with the closest approach the Moon makes to the Earth on its elliptical orbit, resulting in the largest apparent size of the lunar disk as seen from Earth. The technical name is the perigee-syzygy of the Earth-Moon-Sun system. (Wikipedia) This superman eclipse took place on September 27-28, 2015. The last supermoon eclipse occurred in 1982, and the next won't take place until 2033.