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August 31 Blue Moon

Moon and Venus, August 15, 2020

2020, August 15: The crescent moon appears 3.4° to the upper left of Venus this morning among the stars of western Gemini.



Full Moon (NASA Photo)


What is a Blue Moon? Several different explanations describe this infrequent occurrence.

August 31, 2012 is the second full moon of the month. This phenomenon is known as a “Blue Moon” in current discourse. This is a rather recent formulation of the term.

Sky & Telescope magazine has traced the history of the term in at least two articles and it has even been part of the change of how the term is used.

Here is a summary of what the articles describe:

With that written, I will put here that I will not write about this topic until the next Blue Moon and let the reader determine the usage.


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