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Note that the times below were calculated using AutumnalEquinox in the Mathematica application package Scientific Astronomer, which is accurate to within only an hour or so, and in practice gives times that differ by up to 15 minutes from thoseĬomputed by the U.S. Eastern daylight saving time, subtract 4 hours, so the autumnal equinox occurs at The table below gives the universal time of the autumnalĮquinox. Thousands of new, high-quality pictures added every day. Find high-quality stock photos that you wont find anywhere else. Browse 5,500+ the autumnal equinox stock photos and images available, or start a new search to explore more stock photos and images. 5,464 'autumnal equinox' Images, Stock Photos & Vectors Shutterstock Find 'autumnal equinox' stock images in HD and millions of other royalty-free stock photos, illustrations and vectors in the Shutterstock collection. The above plots show how the date of the autumnal equinox shifts through the Gregorian calendar according to Search from The Autumnal Equinox stock photos, pictures and royalty-free images from iStock. The autumnal equinox marks the first day of

Northward and occurs on the date of the northern vernal equinox. Hemisphere, the autumnal equinox corresponds to the center of the Sun crossing the celestial equator moving The date (near September 22 in the northern hemisphere) when night and day are nearly of the same length and SunĬrosses the celestial equator (i.e., declination 0) moving southward (in the northern hemisphere).