Definition of equinoxCategorized under "General"
Definition as written by Terry:
Twice each year, the sun crosses the celestial equator and the day and night are approximately equal in length.
The vernal equinox occurs in spring, while the autumnal equinox occurs in fall. These days herald the beginning of spring and fall, respectively.
Definition as written by Debbie2007:
An equinox happens each year at two specific moments in time (rather than two whole days), when there is a location on the Earth\'s Equator where the centre of the Sun can be observed to be vertically overhead, occurring around March 20/21 and September 22/23 each year.
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