Seasonal blue moons occur on average once every two or three years, and the next one won't be until October 31, 2020, so keep your eyes peeled on Saturday evening. Except for February, when a full Moon is on the first day on any month of the year, you will have a Blue Moon four weeks later. The third of the four full moons is called the blue moon. There have been two full moons since then-March 21 and April 19.
And the next seasonal Blue Moon will peak on August 2021.
"In 2018 unusually, we had two blue moons in one year and only two months apart - and one was a lunar eclipse". The next full Blue Moon will occur on August 22, 2021.
Brian Murphy, a professor of physics and astronomy at Butler University in IN, notes that when this full moon first rises, it might have an orange tint as it starts to ascend the eastern horizon. But what is it with Saturday's Blue Moon?
Where Can I Catch the Best Views of the Blue Flower Moon?
May only has one full moon, and that falls on Saturday the 18th.
However, the satellite won't actually appear blue. When a particular season has 4 moons, the 3rd was apparently called a Blue Moon so that the 4th and final 1 could continue to be called the late moon.
The particles that make up the ash were small enough to scatter the red light and let other colors shine through, according to NASA - making the moon appear blue. May 18 also marks the 50th anniversary of NASA's launch of the Apollo 10 mission to the moon in 1969.
A Flower Moon may indicate the time of year when flowers come into bloom or the "Strawberry Moon" gets its name in June because that is when Strawberries are harvested.
Again, this newer definition really has nothing to do with the moon itself, which is just going about its normal orbiting business.