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Which phenomenon occurs when the Sun crosses the plane of Earths equator?
The Equinoxes - Autumnal and Vernal (or Spring). The hours of daylight equal the hours of darkness.
The places the Sun crosses the equator are called the?
The places where the Sun crosses the equator are called the equinoxes. There are two equinoxes each year: the vernal (spring) equinox in March and the autumnal equinox in September. During these times, day and night are approximately equal in length all over the world.
Where does the sunlight hit the earth?
In the tropics. The sun is straight overhead at some time or other, between the tropic of Cancer, in the north and the tropic of Capricorn. During the equinoxes (vernal and autumnal), the sun is directly overhead at the equator.
When are day and night the same length and what is the phenomenon called?
The length of day and night is equal at the Vernal and Autumnal equinox.
How many times a year do equinoxes occur?
There are two equinoxes (i.e. vernal/spring and autumnal/fall) every year.
The vernal and autumnal equinoxes where is the sun in relation to the equator during?
At the Equinoxes, the Sun is directly above the equator.
When do fall and spring occur?
They begin at the vernal and autumnal equinoxes
Which phenomenon occurs when the Sun crosses the plane of Earths equator?
The Equinoxes - Autumnal and Vernal (or Spring). The hours of daylight equal the hours of darkness.
What are March 21 and September 21?
The vernal and autumnal equinoxes, respectively.
The places the Sun crosses the equator are called the?
The places where the Sun crosses the equator are called the equinoxes. There are two equinoxes each year: the vernal (spring) equinox in March and the autumnal equinox in September. During these times, day and night are approximately equal in length all over the world.
What is autumnal vernal equinoxes?
The equinox is either vernal (spring) or autumnal. It can't be both. But spring in the northern hemisphere is autumn in the southern.
How did the person making the calandar know what date it was?
From very precise calculations of vernal equinoxes.
Why is it windy at the equinoxes?
Because that's how the weather happens to be on that particular vernal equinox. There is no correlation with wind.
Where on the horizon does the sun rise at the same time of the vernal equinox?
The sunrise is due east on the equinoxes.
In 2010 when are the vernal and autumnal equinoxes?
For a vernal equinox, it occurs is March 20th. For an autumnal equinox, it occurs September 22nd.
Which of the following are valid names for the equinoxes?
fall equinox partial equinox
How much time does passes between one spring equinox and the next?
There are two equinoxes evry year, in September and March, and a year passes between one vernal equinox and the next (in either hemisphere).
