Blue Moon anyone ?
No, not a Belgian wit beer, an actual blue moon. I think.
This weekend was an astronomers dream as what they call a Full Flower Moon was displayed. Apparently, it is the 3rd full moon this spring which is pretty interesting but technically the 2nd full moon is called the blue one.
The moon would not look blue of course, but orange due to the hazy sky. Ok, now I'm totally confused...
Here is the official definition of a Blue Moon from earthsky.org
We had two Blue Moons in 2018, one on January 31 and the second on March 31. Both the January and March 2018 Blue Moons were blue in name only. Both were the second of two full moons to fall within a single calendar month. The coming Blue Moon will be blue in name only, too, but the rules for it are a bit different. The Blue Moon of May 18, 2019, will be a seasonal Blue Moon, that is, the third of four full moons in one season.
In recent years, people have been using the name Blue Moon for these two different sorts of moons: second of two full moons in a calendar month, or third of four full moons in a single season.
Someday, you might see an actual blue-colored moon. Meanwhile, the moon you’ll see on May 18 likely won’t look blue, and blue-colored moons in photos – like the ones on this page – are usually made using special blue camera filters or in a post-processing program such as PhotoShop.
Ok, I thought that would explain it better ... maybe I was wrong.