The full moon in October is also known as the “hunter’s moon” because it marks the beginning of the hunting season, signaling to hunters to begin preparing for colder conditions, according to the Old Farmer’s Almanac. The “hunter’s moon” follows the “harvest moon,” a moon phase that signals the best time for harvesters to reap their crops.

Along the lunar orbital path, the point of closest proximity is known as perigee, which is when the moon is, on average, 226,000 miles (363,300 kilometers) from Earth. When a full moon phase coincides with perigee, a supermoon event occurs.

After a display of the rare Northern Lights and an appearance of a comet that may leave the solar system forever, the year’s largest supermoon completed October’s celestial trifecta.