What is it called when both hemispheres are getting the same amount - ProProfs Discuss
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What is it called when both hemispheres are getting the same amount of radiation from the sun?

Asked by Kfitzgerald, Last updated: May 22, 2021

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2 Answers

d.Jessica

d.Jessica

d.Jessica
D.Jessica

Answered Sep 07, 2017

It is called equinox. An equinox is the moment in which the plane of Earth's equator passes through the center of the Sun's disk, which occurs twice each year, around 20 March and 23 September. On an equinox, day and night are of approximately equal duration all over the planet.

They are not exactly equal, however, due to the angular size of the sun and atmospheric refraction. To avoid this ambiguity, the word equilux is sometimes (but rarely) used to mean a day in which the durations of light and darkness are equal. The word is derived from the Latin word aequinoctium, aequus (equal) and nox (genitive noctis).

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John Smith

John Smith

John Smith
John Smith

Answered Aug 17, 2017

Equinox
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