Howllo Fellow Basset Hound and Blue Moon Lovers!
At the end of 2009, a “blue moon” will preside over the annual New Year’s Eve countdown and accompanying ball drop in Times Square.
But what does this mean?
For most people, it will just mean a full pie in the sky Thursday night. A blue moon is simply the second full moon in month. It doesn’t actually have anything to do with color at all.
Usually, there’s only one full moon each month because the monthly calendar was built on the lunar cycle (29.5 days). But once every 2-1/2 years, those extra half days add up to two full moons in a month.
So where does the name come from?
According to NASA’s website, the term blue moon was “used in much the same way we use the term ‘harvest moon.’ There were twelve names for full moons, one for each month, and the name blue moon was used in years which had 13 full moons.”
But in 1943, Sky and Telescope Magazine erroneously wrote that the second full moon in any calendar month was called a blue moon. The label stuck and is still used today.
It’s relatively rare that a blue moon would fall on New Year’s Eve. The last time that happened was 1990, according to CNN.
Even more rare there were two blue moons in 1999, one in January and one in March. That happens only about four times a century.
Interestingly enough, this is not where the expression “once in a blue moon” comes from. According to NASA, that phrase is believed to have originated in 1883 after the eruption of Indonesia’s Mount Krakatoa. The volcano put so much dust in the atmosphere that the moon actually looked blue in color. The event was deemed so unusual the phrase “once in a blue moon” was coined.
More interesting blue moon facts later but for now enjoy this tune from the wonderful and melodic Chris Isaak
Happy Blue Moon New Years Eve fellow town lovers!
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