By Witchipedia, Moon RItuals & Esbats
Why is Blue Moon so Special
This article examines the term “blue moon,” tracing its dual definitions—the modern usage referring to a second full moon within a calendar month and the traditional astronomical definition denoting the third full moon in a season containing four full moons. The historical origins of both interpretations are explored, including the 1946 *Sky & Telescope* misprint that popularized the monthly definition, alongside folk etymology connecting the term to Old English expressions of improbability.


