The Autumnal Equinox is observed annually when the sun can be seen directly overhead along the equator, marking the end of summer and beginning of fall in the Northern Hemisphere.
The autumn equinox is one of two days when all points on Earth except the polar regions see the sun rise and set at due east and due west. With few exceptions, all latitudes see almost exactly 12 hours of daylight and 12 of darkness.
HOW TO OBSERVE
Use #AutumnalEquinox to post on social media.
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