This year’s Harvest Moon will reach fullness early Thursday morning. The full moon closest to the autumnal equinox is given the title “Harvest Moon” because for a few days before and after it reaches fullness, the moon rises only around 30 minutes later each night, ensuring an early-evening light source for farmers working late to harvest their crops. Some years the Harvest Moon falls in early October, but with the equinox only a few days away it will be a September Harvest Moon this year. It will reach fullness at approximately 6:13am on Thursday. The equinox arrives at 3:44pm on Sunday.