September Equinox

The equinox arrives on September 23. That’s when the equinox sun is exactly above Earth’s equator, moving from north to south. At the equinox, days and nights are approximately equal in length. For us in the Northern Hemisphere, the sun is rising later now, and nightfall comes sooner.  

The Sky Tonight Update: Full Harvest Moon

The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated. This full moon was known by early Native American tribes as the Corn Moon because the corn is harvested around this time of year. This moon is also known as the Harvest Moon. The Harvest Moon is the full moon that occurs closest to the September equinox each year.