Earth from orbit on the September equinox, as viewed by EUMETSAT. Notice how the line between day and night - the terminator - touches both the north and south poles. More at http://bit.ly/earthequinox Image credit: NASA/Robert Simmon
September Equinox occurs this year on September 23, at 01:04 UTC. This means the equinox occurs the evening of September 22 for folks in North America, at 9:04 pm EDT/ 6:04 pm PDT).
Equinox is the moment when the Sun shines directly on the Earth's equator and lights up the Northern and Southern Hemispheres equally. This equinox marks the beginning of the fall season in the Northern Hemisphere, and the spring season in the Southern Hemisphere. You can read more about equinoxes in our March 2022 edition of NASA's Night Sky Notes: Embracing the Equinox.
More about this equinox at EarthSky.
List of Equinoxes and Solstices from the US Naval Observatory
Date: Thursday, September 22, 2022
Time: 6:04 p.m. - 6:04 p.m.