A rare blue moon will light up the Halloween night sky

Katie Ramirez
October 2, 2020

What's more, trick-or-treaters won't see the next Halloween blue moon until the year 2039.

We've had our fair share of astronomical wonders this year, from the supermoons to the meteor showers, and with the current lockdown situation, there couldn't be a better time to stay home and be a sky gazer.

But on Halloween night 2020, the phrase will actually apply by its commonly used definition.

"The old object defines a blue moon in a season with four full moons as the third full moon".

Though not blue in color, the name is given to the second full moon that appears in a single calendar month, as in this case, the publication reported. The last time a blue moon was seen in America was March 2018.

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The first full moon of October will be Oct. 1. They're spaced apart by around 29 days, so since some months are longer than others the date of the full moon varies, and every once in a while we'll have a setup where one month sees two full moon cycles.

The Harvest Moon is the first of two full moons in October, making the second on Halloween, Oct. 31, a blue moon. It is also known as the Hunter's Moon "because October was when people in the Northern Hemisphere would begin preparing for winter by hunting, slaughtering and preserving meat".

What makes this even more special is that the moon will be visible in all time zones across the world! "This means that February will never have a Blue Moon".

Usually months have only one full moon, but occasionally a second one sneaks in, NASA reports.

However, wildfires can affect the moon's color, so you might observe a blu blue moon or a red-blue moon next month, according to the region you watch it from.

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