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At the equinox day and night are of the same length all over the world because the Sun is in the plane of the Earth's equator, and that happens on March 21 and September 22 each year.
At other times the Sun is above or below the Equator, and day and night have unequal lengths.
What else can I help you with?
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 the dates of the spring and fall equinoxes?
The Spring and Fall Equinoxes are the first days of Spring and Fall. In the southern hemisphere, this is not the case. The Spring equinox occurs around the 21st or 22nd of September, not the first day of Spring, which is September 1. The Autumn equinox occurs around the 21st or 22nd of March, not the first day of Autumn, which is March 1.
The length of the days and nights is equal at the?
At the Equator at the two Equinoxes, Spring and Fall.
What is the 3 seasons and why do they have them?
The three months represent spring, because Persephone was the goddess of spring! I hope that answers your question!
Which of the following are valid names for the equinoxes?
fall equinox partial equinox
What days mark the days when the sun is directly over the equator?
What are spring and fall equinoxes
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 many times a year do equinoxes occur?
There are two equinoxes (i.e. vernal/spring and autumnal/fall) every year.
How do equinoxes formed?
Equinoxes don't form they are points in time, they happen. An equinox is when the sun crosses over the equator making night and day of approximately equal length all over the earth. This happens in spring = spring equinox and in autumn = autumnal equinox
What relationship exists between the spring and autumnal equinoxes and the position of the sun in the sky?
At the moments when spring and autumn begin, the sun is directly over the equator.
What day has 12 hours for day and night?
The Spring and Autumn equinoxes: 20 March and 22 September.
