On Halloween, the rare blue moon will appear in the sky for the first time since 2001. When there are multiple full moons in a month, a blue moon appears. NASA says it happens at the same time as Halloween every 19 years. The moon is not really blue, but it will bloom, making Halloween a little weird. According to NASA, the next time to kiss the blue moon and Halloween will be 2039.
NASA explained in its blog that “Blue Moon” occurs approximately every two and a half years. After 2020, there will be blue moons in August 2023, May 2026, and December 2028. On average, the moon will be full once every 19 years on Halloween. This period is called the Metonic cycle. The blue moon occurs after the October harvest month on October 2. In theory, it marks the time when winter stocking begins.
According to FarmersAlmanac, the 2001 Halloween blue moon was only seen in the Central and Pacific time zones. The upcoming “Blue Moon” will appear in all time zones, so it is even rarer. The report said that since 1944, not everyone at all times has had the full Halloween moon.
The most common definition of a blue moon is the appearance of two full moons in a month, and the second is called the “blue moon”. However, there is an alternative definition, that is, when there are four full moons in a season, the third is considered a blue moon.
“The blue moon has no astrological significance. But the fact that a full moon occurs on Halloween is significant. The full moon is when we get a little help in the dark. This is a very important full moon. It happened four days before the election. Sitting next to a planet full of turbulence, change, surprise and excitement: Uranus.” Astronomer Chani Nicholas told The New York Times, adding that now is a good time to get rid of what we don’t need.