The Sky Today on Monday, September 22: Astronomical autumn begins

The autumnal equinox occurs at 2:19 P.M. EDT. On this date, the Sun appears directly above the equator and the Northern and Southern hemispheres receive the same amount of sunlight. The autumnal equinox also officially brings the Northern Hemisphere summer to an end and begins astronomical autumn, while bringing the end of winter in theContinue reading “The Sky Today on Monday, September 22: Astronomical autumn begins”
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