The best time to witness the supersize moon is, reportedly, when it is at its closest to the horizon.
Supermoons, or ‘perigee-syzygy of the Earth-Moon-Sun system’, happen practically every year, and often more than once a year.
It is, online research explains, “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.”
This year supermoons will occur this Saturday, followed by 28 September and 27 October.