Equinox


 
 
Concept Explanation
 

Equinox

The Equinox (Vernal & Autumnal)

There are only two times of the year when the Earth's axis is tilted neither toward nor away from the sun, resulting in a "nearly" equal amount of daylight and darkness at all latitudes. These events are referred to as Equinoxes. At the equator, the sun is directly overhead at noon on these two equinoxes.  The "nearly" equal hours of day and night are due to refraction of sunlight or a bending of the light's rays.

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