The Tropics of Cancer and Capricorn are the farthest possible north and south, respectively,
where the sun can be directly overhead at a point on earth.
They mark the north/south boundaries of the belt around the earth's middle where it's possible for the sun to ever be directly overhead, i.e. to strike the ground perpendicularly. Not surprisingly,...
It is the northernmost latitude at which the sun appears directly overhead at the Summer Solstice. The invisible line is called tropic of cancer, because when it was named the sun was in the...
The Tropic of Capricorn and the Tropic of Cancer are defined as parallels, or lines of latitude encircling the Earth.The Tropic of Capricorn lies 23.3 degrees south of the equator while the Tropic of...
Because of the 23.5 degree axial tilt of the earth in the plane in which it orbits the Sun, over the course of the year the Sun's directly overhead position at mid day (90 degress) moves north and...