Question

what are equinoxes?
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Answer 1

Answer:

the time or date (twice each year) at which the sun crosses the celestial equator, when day and night are of approximately equal length (about 22 September and 20 March).

Explanation:

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Answer 2

Answer:

An equinox is an event in which a planet's subsolar point passes through its Equator. ... An equinox is an event in which a planet's subsolar point passes through its Equator. The equinoxes are the only time when both the Northern and Southern Hemispheres experience roughly equal amounts of daytime and nighttime.

Explanation:

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