Nothing. The Earth changes.
The Sun is over Earth's equator during the equinoxes, which occur around March 20th (spring equinox) and September 22nd (fall equinox) each year. This is when day and night are approximately equal in duration all over the world.
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.
It's called the Equinox, which happens biannually, one called Vernal Equinox (Spring), and one called Autumnal Equinox (Fall).
No. For one thing there is no such thing as a "summer equinox." We have the vernal (spring) and autumnal (fall) equinoxes and the winter and summer solstices. At the summer solstice for the northern hemisphere the sun is directly over the Tropic of Cancer. At the summer solstice for the southern hemisphere (winter for the northern hemisphere) the sun is over the Tropic of Capricorn. The sun is directly over the equator at each equinox.
This happens twice a year at on of the "equinox" (the spring equinox or the fall equinox) At noon if you are on the equator at thet oment the Sun is at the "Zenith".
At the equinox, the Sun will be directly above the equator, 0 degrees latitude.
It is called the Equinox. It is when both axis of the world are facing away from the sun. The sun's plane then is directly over the Equator. It happens twice a year, there is the September Equinox and the March Equinox.
That entirely depends on your latitude, but on the fall equinox, lets say for simplicity you are at 45 degrees N, then on the Fall equinox the sun would be 45 degrees above the souther horizon at noon. In the tropics the sun can be at the zenith (90 degrees overhead).
the sun is at 0 degrees during an equinox. It is aligned with the equator.
Equinox:)The sun is directly over the equator at the two instants during the year whenthe sun reaches one of the "equinox" points among the stars. That happens inMarch and September.Those moments are the astronomical beginning of Spring or Fall in both hemispheres.
The Sun is positioned over the equator during the equinoxes, which occur around March 20th-21st (spring equinox) and September 22nd-23rd (fall equinox) each year. During these times, day and night are approximately equal in length.
There is an equinox in the spring called the vernal equinox, and one in the fall called the autumnal equinox. They happen at the moment that the center of the sun is in the earth's equatorial plane. In other words, they occur at the moments when the sun passes directly over the equator.