At 2:00 a.m. ET on August 25, the moon will be at apogee, the farthest it will get from Earth as the natural satellite travels in its egg-shaped orbit around our planet. At its closest, the moon is said to be at perigee.

Perigee and apogee each happen about once a month. But the moon wobbles as it orbits, which means its exact distance at those events varies over the year. The moon's phase can also be different during each apogee and perigee.

The moon officially turns full at 1:05 p.m. ET today. The August full moon is sometimes called the sturgeon moon or the green corn moon, according to Native American tradition. (Take a