Wednesday, September 22, 2010

Do you know what they call the September full moon?

After reading my post "Harvest under a full moon", Lori Bauer (AKA Sis O'Bauer) sent me a question: Do you know what they call the September full moon? 

I'm guessing that many of you will come up with the same knee-jerk response to that question that I did: The Harvest Moon.  And most often, that is correct, but not always.

The Nasa Science News website states the following:

"The Harvest Moon gets its name from agriculture. In the days before electric lights, farmers depended on bright moonlight to extend the workday beyond sunset. It was the only way they could gather their ripening crops in time for market. The full Moon closest to the autumnal equinox became "the Harvest Moon," and it was always a welcome sight."

Did you notice that nowhere in there does it mention September?  That's because the Harvest Moon is not always in September.

Sis (I adopted her as my sister several years ago) also provided me with a link that would answer her question. The link was to the Farmer's Almanac... so I went there and read the following:

"• Full Corn Moon – September This full moon’s name is attributed to Native Americans because it marked when corn was supposed to be harvested. Most often, the September full moon is actually the Harvest Moon.

Full Harvest Moon – October This is the full Moon that occurs closest to the autumn equinox. In two years out of three, the Harvest Moon comes in September, but in some years it occurs in October. At the peak of harvest, farmers can work late into the night by the light of this Moon. Usually the full Moon rises an average of 50 minutes later each night, but for the few nights around the Harvest Moon, the Moon seems to rise at nearly the same time each night: just 25 to 30 minutes later across the U.S., and only 10 to 20 minutes later for much of Canada and Europe. Corn, pumpkins, squash, beans, and wild rice the chief Indian staples are now ready for gathering."

Isn't that fun stuff to know?  Turns out that every month has a unique name for their full moons.  Can you match the month to the following full moons?: 

Full Sturgeon Moon  - Full Strawberry Moon - Full Snow Moon - Full Pink Moon - The Full Cold Moon; or the Full Long Nights Moon - Full Wolf Moon - The Full Buck Moon - Full Snow Moon - Full Worm Moon - Full Flower Moon - Full Beaver Moon

Every one of those full moon names is explained at the Farmer's Almanac website:


Now getting back to the Nasa Science News website info, we are told

"Watch out for the Super Harvest Moon

Sept. 22, 2010:  For the first time in almost 20 years, northern autumn is beginning on the night of a full Moon. The coincidence sets the stage for a "Super Harvest Moon" and a must-see sky show to mark the change of seasons.
The action begins at sunset on Sept 22nd, the last day of northern summer. As the sun sinks in the west, bringing the season to a close, the full Harvest Moon will rise in the east, heralding the start of fall. The two sources of light will mix together to create a kind of 360-degree, summer-autumn twilight glow that is only seen on rare occasions.

Keep an eye on the Moon as it creeps above the eastern skyline. The golden orb may appear strangely inflated. This is the Moon illusion at work. For reasons not fully understood by astronomers or psychologists, a low-hanging Moon appears much wider than it really is. A Harvest Moon inflated by the moon illusion is simply gorgeous.
...
The Harvest Moon gets its name from agriculture. In the days before electric lights, farmers depended on bright moonlight to extend the workday beyond sunset. It was the only way they could gather their ripening crops in time for market. The full Moon closest to the autumnal equinox became "the Harvest Moon," and it was always a welcome sight.

This one would be extra welcome because it is extra "Harvesty." Usually, the Harvest Moon arrives a few days to weeks before or after the beginning of fall. It's close, but not a perfect match. The Harvest Moon of 2010, however, reaches maximum illumination a mere six hours after the equinox. This has led some astronomers to call it the "Harvestest Moon" or a "Super Harvest Moon." There hasn't been a comparable coincidence since Sept 23, 1991, when the difference was about 10 hours, and it won't happen again until the year 2029.
A Super Harvest Moon, a rare twilight glow, a midnight conjunction—rarely does autumn begin with such celestial fanfare.

Enjoy the show! "

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And lastly, for those of you old enough to know who Laurel & Hardy were:

Laurel & Hardy "Shine On Harvest Moon" (1939)

 

1 comment:

Steve said...

Ranndy,

Thank you for the Moon names. It goes to show we humans have been looking at that ball and thinking for a long time.

Steve