How to See the Brightest Supermoon of 2017
▻https://news.nationalgeographic.com/2017/11/how-to-see-brightest-supermoon-2017-december-space-science
On the night of December 3, sky-watchers around the world will get a chance to revel under the first—and last—full supermoon of the year.
A supermoon is the popular term for a full or new moon that coincides with the lunar orb making an especially close approach to Earth. The moon’s orbit around Earth is not a perfect circle but is somewhat elongated. That means the moon changes its distance to Earth by a few thousand miles over time, reaching a closest point (perigee) and a farthest point (apogee) in any given month.
