And if you spot what looks like a fiery red star near the full moon, that's Mars. The red planet made its closest approach to Earth earlier in October, and it's still shining bright in the night sky.
October's first full moon was the harvest moon on October 1, and the second is a rare full Halloween blue hunter's moon. While the moon won't actually look blue, the second full moon in one month is usually referred to as a blue moon. This happens every 2.5 to three years, or "once in a blue moon."
Previously, a blue moon was known as the third or fourth full moon in a single season. Typically, the next moon after the harvest moon is known as the hunter's moon -- when hunters used moonlight to hunt prey and prepare for winter. While a blue moon seems rare, a full moon on Halloween across time zones is even more rare -- an event that hasn't occurred since 1944.
However, a full moon occurs on Halloween every 19 years in some time zones, so you can expect a full Halloween moon again in 2039, 2058, 2077 and 2096.
The full Halloween moon will rise at 10:49 am ET on October 31, which explains why the moon will be visible across time zones. If you aren't able to see it due to bad weather or cloud cover in your area, the Virtual Telescope Project will share a live stream of the Halloween blue moon rising above Rome.
This is also the last day of Daylight Saving Time for many people around the world, so set your clocks back an hour on November 1 at 2 am. (The clocks already went back one hour across Europe on October 25 at 2 a.m.)
October Full Moon Names from different cultures Tugluvik (Inuit). Kentenha (Mohawk). Long Hair Moon (Hopi) Ten Colds Moon (Kiowa). Falling Leaves Moon (Arapaho). Corn Ripe Moon (Taos Native American). Hunter's Moon, Blood Moon (Neo-Pagan). Leaf Fall Moon (San Juan Native American). Blood Moon, Wine Moon (Mediaeval English). Blood Moon Falling :Full, Leaf Moon :Dark (Janic). Hunter's Moon, Travel Moon, Full Dying Grass Moon (Algonquin Native American/Colonia).
Other Moon names: Spirit Moon, Snow Moon, Shedding Moon, Winterfelleth (Winter Coming), Windermanoth (Vintage Month), Falling Leaf Moon, Moon of the Changing Season, White Frost moon