The Autumnal Equinox, or September Equinox, marks the beginning of Fall in the northern hemisphere and Spring in the southern hemisphere. On the Autumnal Equinox, the sun shines directly over the equator and the length of day and night are nearly equal – the only place with exactly 12 hours of daylight and 12 hours of night is on the Equator.
When is the Autumnal Equinox?
The Autumnal Equinox occurs around September 22 or 23 at a specific time. In 2011, the Autumnal Equinox will occur on September 23 at 9:04 a.m.
Do people celebrate the Autumnal Equinox?
Photo Source: böhringer friedrich via Wikimedia Commons