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. The opposite phenomenon, an apogee-syzygy, has been called a 'micromoon', though this term is not as widespread as 'supermoon'. The term "supermoon" is not astronomical, but originated in modern … [Read more...]