A blue moon is an additional full moon that appears in a subdivision of a year:
either the third of ... In modern use, when 13 full moons occur in a year, usually
one calendar month has two full moo...
Once in a Blue Moon: what does it mean and how often does it happen?
A Full Moon occurs roughly every 29.5 days and on the rare occasions when the
Full Moon falls at the very ... According to this definition the next Blue Moon will
occur on January 31, 2018. Year ... This is a very rare event but it does happen.
May 20, 2016 ... ... it can be. Find out why there are two definitions of Blue Moon and learn when
is the next Blue Moon. ... Called a seasonal Blue Moon, this occurs about every
2.7 years. Why the third .... Does the Moon Rotate? 2016 Moon ...
Instead it refers to the relatively rare occurrence of what is called a "blue moon". (
However, an actual blue-colored moon could occur from atmospheric effects ...
How Often Does a Blue Moon Occur? Over the next 20 years there will be about
15 blue moons, with an almost equal number of both types of blue moons ...
Jul 29, 2015 ... So, according to the second-full-Moon-in-a-month definition of a Blue Moon, just
how often do they occur? If you have a few hours to devote to ...
Have you ever heard the expression “once in a blue moon?” It means 'not very
often,' or 'very rarely,' but exactly how often does a so-called blue moon occur?
Exactly what is a Blue Moon and how was it named that way? According to Sky ...
Does a Blue Moon happen at the same time everywhere on the Earth? No. As the
... When was the last Blue Moon in February, and when will the next one be?
Jul 27, 2015 ... The phenomenon known as a "Blue Moon" can be spotted at the end of July. ...
that takes place when there are two full moons in the same calendar month.
According to Earth Sky, the next blue moon will occur on July 31.