September equinox

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Related to September equinox: December solstice, June solstice
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Noun1.September equinox - September 22September equinox - September 22        
Sep, Sept, September - the month following August and preceding October
equinox - either of two times of the year when the sun crosses the plane of the earth's equator and day and night are of equal length
autumn, fall - the season when the leaves fall from the trees; "in the fall of 1973"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in classic literature ?
Since the September equinox it had emerged from the northern horizon, rising by lengthened spirals up to the 21st of December.
The autumnal equinox, which is also known as the September equinox, will see the start of fall in the Northern Hemisphere and spring in the Southern Hemisphere.
But the Astronomical summer season would end on the September Equinox, September 21.
This normally happens around the Spring Equinox in March and near the September Equinox.
"This September equinox signal that winter is approaching in the northern hemisphere, and summer is approaching in the south.
The September equinox occurs at 09:04 (or 9:04am) Coordinated Universal Time (UTC) on September 23, 2011.