What is the orientation of the sun at sunrise and sunset at noon?

At sunrise, the angle between the sun and the ground is 0/ 180.

At noon, the angle between the sun and the ground is 90, but this is called the noon sun height angle, which is determined by the latitude position of the place and the position of the direct point of the sun.

At sunset, the angle between sun and ground is 0/ 180.

Brief introduction of direct solar point:

The direct point of the sun is the point where the incident angle of sunlight on the earth's surface (that is, the solar altitude angle) is 90 degrees, and it is the intersection of the connecting line between the center of the earth and the sun and the spherical surface of the earth. The meridian where the direct point of the sun is located is 12 noon.

The law of activity is: at the vernal equinox (March 2 1 or so), the direct point of the sun is at the equator (0), and then it moves north. During the summer solstice (around June 22nd), the direct point of the sun is on the tropic of cancer (23 26 ′ N), and then moves south. At the autumnal equinox (around September 23rd), the direct point of the sun is at the equator (0), and then it continues to move south. During the winter solstice (around 65438+February 22nd), the direct point of the sun is on the tropic of Capricorn (23 26), and then moves northward.