What is the September Equinox?

There are two equinoxes every year – in September and March – when the sun shines directly on the equator and the length of day and night is nearly equal. The Earth during the September equinox. Spring in the South Seasons are opposite on either side of the equator, so the equinox in September is also known as the Autumnal (fall) equinox in the northern hemisphere. In the southern hemisphere, it’s known as the Spring

"What is the September Equinox?"