The Hunter's Moon supermoon, the largest of four this year, will illuminate the night sky tonight, October 16, 2024, at a distance of 222,055 miles (357,364 kilometers) from Earth. This supermoon, which occurs when the full moon coincides with its closest approach to Earth, will appear about 30% brighter than usual.
In a rare celestial event, the Hunter's Moon will share the sky with Comet Tsuchinshan-Atlas (C/2023 A3), which is currently visible in the Northern Hemisphere after previously captivating observers in the Southern Hemisphere. Discovered last year, the comet is on a long trajectory that may not bring it back for another 80,000 years.
The moon will officially reach its full phase at 7:26 a.m. ET on October 17, while its closest approach occurs at 8:48 p.m. ET tonight. The comet, although fading in brightness, can still be seen with the naked eye about 45 minutes after sunset, particularly in the western sky.
Skywatchers are advised to view both celestial events early in the evening, as the moonlight may obscure some details of the comet's tail. Clear skies will enhance visibility, especially if observers are away from urban light pollution.
This supermoon series, which includes a fourth supermoon on November 15, occurs due to the moon's elliptical orbit around Earth, leading to varying distances and brightness during full moons. The Hunter's Moon is named for its timing during the autumn hunting season and has cultural significance across various traditions.