Supermoon

The November 14, 2016 supermoon was 356,511 kilometres (221,526 mi) away^[1] from the center of Earth. It's size as seen with human eye is about 1.83cm. The last time the full moon approached so close to Earth was January 26, 1948, and it won't be closer until November 25, 2034 when it'll be 221,485 miles from the center of Earth.^[2]

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.^[3] The technical name is the perigee-syzygy of the Earth-Moon-Sun system ^[a]. The term "supermoon" is not astronomical, but originated in modern astrology.^[4] The association of the Moon with both oceanic and crustal tides has led to claims that the supermoon phenomenon may be associated with increased risk of events such as earthquakes and volcanic eruptions, but this is not true.^[5]

The opposite phenomenon, an apogee-syzygy, has been called a micromoon,^[6] though this term is not as widespread as supermoon.

Occasionally, a supermoon coincides with a total lunar eclipse. The most recent occurrence of this was in September 2015, while the next time will be in October 2033.^[7]

The most recent supermoon will occur on November 14, 2016, the closest to Earth since January 26, 1948, and while the next one like this will be until November 25, 2034.^[8] The closest supermoon of the century will occur on December 6, 2052.