A supermoon occurs whenever a full moon coincides with the moon approaching its closest distance to the Earth—a point, known as perigee, that’s about 226,000 miles away—during its 27-day orbit, though NASA does not recognize it as an official astronomical term.

This Beaver Moon is a supermoon, meaning it coincides with the moon's closest approach to Earth in its orbit, known as perigee.

This will be the year’s fourth and final supermoon, looking bigger and brighter than usual as it comes within about 225,000 miles of Earth in the next few days.