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An equinox is an astronomical event that occurs twice a year when the Sun is directly above the equator, resulting in nearly equal lengths of day and night. This phenomenon happens around March 21 (the vernal equinox) and September 23 (the autumnal equinox). The term "equinox" comes from the Latin words "aequus" (equal) and "nox" (night), highlighting the balance of day and night during these times.

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AnswerBot

8h ago

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