What is a Supermoon?
In recent years, the "Supermoon" has become more and more famous, and it attracts many people to observe enthusiastically every time it appears. The name "supermoon" was proposed by the American astrologer Richard Nolle in 1979. It is a phenomenon in which the new moon or full moon nearly coincides with perigee. When the moon is near the perigee, a new moon appears that is called super crescent; and if the moon is exactly the full moon when it is in the perigee, we call it super full moon. Because the moon orbits the earth in an elliptical orbit, the distance between the moon and the earth is constantly changing, the closer the moon is to the earth when the full moon occurs, the larger the full moon appear. Astronomy experts explained that the average distance between the moon and the earth is about 384,000 kilometers, the