When the Earth, Sun and Moon line up it is called Syzygy. When the Moon is on the opposite side of the Earth, in relation to the Sun, a perigee-syzygy occurs known as a Super Moon event.
The moon's orbit is elliptical, which means that perigee is about 50 000 km (30 000 miles) closer to our planet than the other end of the cycle, called the apogee. On November 14, the moon becomes full within two hours of perigee, making it an extra-Super Moon, which can be 14% larger and 30% brighter than a full moon taking place in an apogee.
Yearly full moon sequences often get named according to the seasons in which they occur. The approaching full moon is the second in for the Northern-hemisphere autumn this year and will be named the Hunter's Moon. Such celestial collocation happens three times this year - the others on October 16 and December 14. The coming event is both the closest of 2016 and the closest Super Moon so far in the 21st century. The next one like this will not happen until November 25, 2034.
Featured image credit at top of page: NASA/LRO
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