Earthlings are about to be treated the biggest and brightest full moon of the year — and this so-called supermoon will be extra special. It will be the closest the moon has come to us in almost 69 years. And the full moon won’t come this close again until 2034.

According to CBC “Supermoon” is the popular term for when a full moon coincides with what scientists call the moon’s perigee — the point in its orbit when the moon makes its closest approach to Earth. 

This time around, NASA says closest approach will occur at 6:21 a.m. EST Monday, when the moon comes within 221,523 miles (356,508 kilometers), as measured from the center of the Earth to the center of the moon. The peak full moon will occur at 8:52 a.m. EST.

At that time, however, the moon will be setting and the sun rising, at least on the U.S. East Coast. So prime viewing for those who want to see the supermoon in all its glory will be Sunday and Monday nights.

This supermoon is actually the second in a series of three to occur this fall. The first happened the night of October 16, and social media quickly filled up with stunning images of the unusually big, bright moon.