We have already had a few brief tastes of fall now the harvest moon will seal the deal. The Harvest Moon is the full moon closest to the autumnal equinox. The autumnal equinox comes on September 22 this year at 6:13 a.m. central time in the U.S. on September 19, 2013. No matter where you are on the planet, a full moon ascends over your eastern horizon around the time of sunset and it's always highest in the sky in the middle of the night. NASA fact is a full moon is opposite the sun. Being opposite the sun, the moon is showing us it's fully lighted or "day" side at night, that's why the moon looks full.
It's been said that farmers throughout the Northern Hemisphere gave this fall moon its name. The word around the campfire is, on autumn evenings, the Harvest Moon aided in bringing in the crops. Giving them lighted skies at night to finish the work from the day.