This November’s full moon was the closest and brightest supermoon of 2016 but also the largest since 1948, according to space.com. A full moon occurs each month when the sun, Earth and moon line up, with the moon on the side of the Earth opposite to the sun. The term “supermoon” is used to describe a full moon at its perigee - the point in the moon’s orbit when it is closest to Earth, causing it to appear up to 14 percent bigger and 30 percent brighter in the sky, according to NASA.