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The "equinoxes" are two points on the map of the stars.
The center of the sun reaches and passes one of them at some moment around
March 21, and the other one at some moment around September 22.
At those moments, the sun is directly overhead some point on the earth's equator, and
every place on earth has roughly equal periods of sun-up and sun-down on that day ...
the only two times in the year when these things happen.
What else can I help you with?
What day will the Sun rise exactly in the east and set exactly in the west?
The equinoxes (approximately 21 March & 21 Sept).
How many hours of light does the north pole receive during summertime?
Disregarding the effects of atmospheric refraction . . . If you're standing at the north pole, then the sun is up in your sky from March 21 to September 21, and below your horizon from September 21 until March 21.
What time of year does the sub-solar point reach the farthest south?
When the sun reaches either of the equinoxes,on March 21 and September 21 or 22.
What is the name given to March 21 and September 21?
The name given to March 21 and September 21 is the "equinox". This is when day and night are nearly equal in length, marking the beginning of spring (vernal equinox) on March 21 and the beginning of autumn (autumnal equinox) on September 21.
How many times each year does the sun rise and set at the south pole?
As seen from the south pole, the sun rises once, around September 21, and sets once, around March 21, each year.
On what two dates if the sun directly above the equator?
March 21 and September 21.
What months does the sun lies south of the equator?
From September 21 until March 21.
In which country sun never set?
There is no place on the surface of the earth where the sun never sets. As seen from the North Pole, the sun is above the horizon continuously from March 21 until September 21. As seen from the South Pole, the sun is above the horizon continuously from September 21 until March 21.
What months do the sun strike the equator directly?
That happens at some point on the equator, at a single moment, on two days of the year ... near March 21 and near September 21.
How does the length of daylight time at the earth's poles change as the earth orbits the sun?
Exactly at the poles, the cycle is very simple and regular. At the north pole, the sun rises on March 21 and sets on September 21. At the south pole, the sun rises on September 21 and sets on March 21. And that's the whole story.
When the southern is tilted toward the sun?
Beginning around September 22 and ending on March 21.
What day will the Sun rise exactly in the east and set exactly in the west?
The equinoxes (approximately 21 March & 21 Sept).
The sun is directly over the equator on October 16 or 17?
No. The sun is directly over the equator once near March 21 and again near September 21.
How many hours of light does the north pole receive during summertime?
Disregarding the effects of atmospheric refraction . . . If you're standing at the north pole, then the sun is up in your sky from March 21 to September 21, and below your horizon from September 21 until March 21.
When is the southern hemisphere tilted towards the sun?
Beginning around September 22 and ending on March 21.
What happens when the North Pole and the South Pole are the same distance from the Sun?
You're describing an Equinox -- either March 21 or September 21.
What happens on march 21?
March 20/21 is the Equinox, when the sun is on a line directly above the equator, and shines equally on the northern and southern hemispheres.There is another Equinox event in September.
