Understanding The Blue Moon
Post date: Jul 25, 2010 7:53:29 AM
Celestial Timings article regarding May 2007's blue moon
by Cayelin K Castell
What is a Blue Moon???
Popular understanding says a Blue Moon is when two Full Moons land in the same calendar month. The next Blue Moon by this definition is May 2 and May 31 2007. Apparently our current understanding of a Blue Moon comes from a 1940’s article that appeared in astronomy magazine suggesting the definition of a Blue Moon was the second Full Moon in a calendar month. This event only happens every two and a half to three years. more...