October is here, and so are two full moons this month! The first full moon is tonight and will be visible to the naked eye. The full moon is known as the "harvest moon" which is the full moon closest to the Autumnal Equinox. Usually, we see the Harvest Moon in September, but this year, it falls on the first day of October. But why stop there? Mars will also be visible on these days as well!
You'll be able to see the full moon and Mars on Thursday and Friday night. But Thursday night, the moon will appear the brightest for those viewing it right after sunset, and will start to appear bigger as it makes way over the horizon, due to moon illusion.
To find Mars tonight, all you have to do is find the moon, and look east in the night sky after sunset. Mars will be located just northwest of the moon on October 2nd.
The second full moon of the month will occur on Halloween. Spooky! This second full moon is known, as Blue Hunter's Moon. When a full moon occurs within the same month, it is considered as a "Blue Moon". And no, the moon will not be blue. A Hunter's Moon is first full Moon to follow the Harvest Moon. This year, why not have both!
Blue moons are typically rare, and usually happen "once in a blue moon" (approx., every 2.5 years). But, a full moon on Halloween is even more rare and occurs every 19 years!
Last time we saw a full moon on Halloween was in 1944!