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The equinox is an astronomical event that occurs twice a year, around March 21 and September 23, when the sun is positioned directly above the equator. During these times, day and night are approximately equal in length globally. The March equinox marks the beginning of spring in the Northern Hemisphere and autumn in the Southern Hemisphere, while the September equinox signals the start of autumn in the North and spring in the South. The term "equinox" comes from the Latin words "aequus" (equal) and "nox" (night).

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2w ago

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Related Questions

What are the two days of the year when neither hemisphere is tilted toward the sun is known as?

The two days are known as the Equinox. The spring Equinox (typically June 21) is known as the "Vernal Equinox". The fall Equinox (Typically September 21) is known as the "Autumnal Equinox".


What is another name for spring equinox?

The vernal equinox is also known as the spring equinox.


What is a sentence using the word autumnal equinox?

The autumnal equinox is also known as the fall equinox and the September equinox. An example of a sentence using "autumnal equinox" is "This year's autumnal equinox falls on a full moon. "


Twice a year the sun is directly over the equator this is called the?

The Sun is directly overhead the equator two times per year, known as the Equinoxes. In the northern hemisphere, the Spring Equinox occurs on March 20 and the Fall Equinox occurs on September 22.


What is the first day of spring known as?

The Vernal Equinox


The shortest day of the year is also known as?

March Equinox or also known as Vernal Equinox or Spring Equinox.


What is the vernal equinox better known as?

"Vernal" is Latin for "spring".


What is the first day of fall also known as?

the autumnal equinox


What is the name of the day in which the day and night are both equal in duration?

It is called an equinox. In the spring it is known as the Vernal Equinox while in the autumn it is known as the Autumnal Equinox. Both take place around the 21st of March/September, but the date varies slightly each year.


When the sun passes directly over the equator that is a?

That is known as the equinox, which occurs twice a year in spring and autumn. During the equinox, day and night are approximately equal in length all over the world.


Which city is lies at the vernal equinox?

The Vernal Equinox, also known as the Spring Equinox, occurs once per year and is the kick off to the season of Spring. It is when the sun's rays are directly beaming down on the Tropic of Cancer. No city can be located on the Vernal Equinox, as it is not a place. However, a city could be placed at the Tropic of Cancer in which the Vernal Equinox happens, although no city is currently located on this line of latitude.


Which of the following are valid names for the equinoxes?

fall equinox partial equinox