+The Autumn Equinox marks the precise moment the Sun crosses the [celestial equator](/wiki/celestial_equator), creating nearly equal periods of [day](/wiki/day) and night worldwide. It heralds the astronomical start of [autumn](/wiki/autumn) in the Northern Hemisphere, inviting cooler air and the turning of leaves.
+## See also
+- [Spring Equinox](/wiki/spring_equinox)
+- [Equinox](/wiki/equinox)
+- [Solstice](/wiki/solstice)
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