The exact moment of the supermoon is 4:29 p.m. Eastern time on Friday, November 15, but it will appear to be full from early Thursday morning through just before sunrise on Sunday, according to NASA’s Gordon Johnston.

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.

The full moon this week will be a spectacular Beaver Supermoon—the last in a series of four supermoons this year. Here's how to catch a glimpse.