The night sky on Halloween will be illuminated by the blue moon, which is the second full moon of the month. Relatively rare events occur on average once every two years, according to NASA’s National Space Science Data Center.
Each month has a full moon, but since the lunar cycle and calendar year are not fully synchronized, we end up with two in almost every calendar calendar month every three years.
October The first full moon of October, also known as the harvest moon, will appear on the first day of the month. The second full moon, or blue moon, will appear on October 31st. It is the first instance of a blue moon in the United States since March 2018.
This is also the first time since 1944 that Halloween Full Moon has appeared for all time zones, according to the farmer’s calendar. The last Halloween full moon to appear in 2001 was for the Central and Pacific time zones.
The “once in the blue moon” phenomenon does not mean that the moon will appear blue on Halloween. The dark blue tone of the evening sky can affect the color we see when we look, the Earth’s satellite probably won’t appear blue.
In particular, when a moon turns blue, it is due to smoke or dust particles in the atmosphere, such as at the time of a large volcanic eruption.
When the phrase “once in a blue moon” was coined, it meant so rare that you would be lucky (or unlucky) in your lifetime, according to NASA.
So if anything unusual happens to you on Halloween, there may be a good reason for it.
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