“Blue Moon
You saw me standing alone
Without a dream in my heart
Without a love of my own….”
According to ACBnews.com, the blue moon was falsely named because of an article in 1946:
Sky & Telescope, a magazine for astronomy enthusiasts, ran an article in March 1946 that defined a blue moon as the second full moon in a month — but readily admits today that it made a mistake, oversimplifying the four-full-moons-in-a-season definition. The mistake caught on, even though the folklore scholar Philip Hiscock of Canada’s Memorial University of Newfoundland said he could find no references to the two-moons-in-a-month definition from before then. (For the record, the moon is full once every 29 1/2 days.)