+An **equinox** marks the moment when the [Sun](/wiki/Sun) crosses the [celestial equator](/wiki/Celestial_equator), resulting in nearly equal hours of daylight and darkness across most of the Earth. Occurring twice a year, these events signify the transition between seasons.
+## See also
+- [Solstice](/wiki/Solstice)
+- [Season](/wiki/Season)
+- [Earth](/wiki/Earth)
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