When is the sun far away from people 5, when is the sun far away from people

The Sun is a little farther away from us in the morning and a little closer at noon The Earth's orbit around the Sun is an ellipse that is nearly perfectly circular, and the Sun is located at a focal point of the elliptical orbit, so that the distance between the Sun and the Earth is constantly changing in a year or even in a day. At the beginning of January every year, the Earth is at the perihelion of its orbit around the Sun, and the distance between the Sun and the Earth reaches a minimum value, which is about 100 million kilometers. At the beginning of July every year, the Earth is located at the aphelion point of its orbit around the Sun, and the distance between the Sun and the Earth reaches its maximum value, which is about 100 million kilometers.

Compared with the average distance between the Sun and the Earth (100 million km), the difference in the distance between the Sun and the Earth in one year (100 million km) is almost negligible. Then in a single day, the change in the distance between the sun and the earth is even more insignificant. The distance between the sun and the earth varies throughout the day, and it is so small that people cannot feel it.

The Sun is a little farther away from us in the morning and a little closer at noon, and the difference between the two is about the radius of the Earth, which is only 1,2300 the distance between the Sun and the Earth. The distance is small, but it should not be overlooked. Although it is different, but relative to the distance between the earth and the sun, the difference is negligible, it is recommended that you study the movement of celestial bodies, the revolution and rotation of the earth, because the earth's axis is tilted, because the earth revolves around the sun, the sun will not become bigger and smaller, although it is different, but relative to the distance between the earth and the sun, the difference is minimal.

Because the earth is rotating, the sun is also surrounding the earth, in short, it is different.

Winter is close to us. The Earth's orbit around the Sun is an ellipse, and the Sun is at one of the focal points of the ellipse. Therefore, the Earth's elliptical orbit has a difference between perihelion (the position closest to the Sun) and aphelion, which is roughly the beginning of January when the Earth is at perihelion.

Regarding the distance of the sun from people, it is necessary to combine the revolution and rotation of the earth, and also to see the latitude and time of people on the earth.

The earth revolves around the sun, and the orbit is an ellipse, and the sun is at a focal point of this ellipse, so the distance of the earth from the sun is related to the position of the earth in the orbit of the earth. On the summer solstice, the Earth is at aphelion, and the Earth is farthest from the Sun; During the winter solstice, the Earth is at perihelion, and the Earth is closest to the Sun. From perihelion to aphelion, that is, from the winter solstice to the summer solstice, the earth rotates and moves away from the sun; During the summer solstice and winter solstice, the Earth is getting closer and closer to the Sun.

It can be seen that the sun is the closest at the winter solstice. This is from a year, if you look at it from one day, how does the distance of the earth from the sun change?

If the Earth moves no other than its rotation, and its axis of rotation is perpendicular to the straight line between the Sun and the Earth, then at the same time people at the equator are closest to the Sun and people at the poles are farthest. However, the Earth rotates at an angle, so the difference between morning and evening is greater at the equator, and the greater the latitude (i.e., the farther away from the equator), the smaller the difference between the distance between the Sun at noon and between morning and evening.

If the Earth is completely stationary, the area in the middle hour is closer to the Sun than the area in the morning hour. However, the earth is not completely stationary, but is in a constant rotation and revolution, so the distance between the sun and the observer is related to the shape of the earth, the latitude of the earth, the sunrise time, the slow change in the direction of the earth's axis of rotation, and the slight influence of the gravitational pull of the planets on the earth's orbit, but the change in this distance is negligible compared to the straight-line distance of the sun and the earth.

It can be seen that on the same day, at different times, in different places, the sun is far and near from people. It's just that this distance is so small compared to the distance of the sun from the earth that it is not necessary to consider at all, just like the weight of a few hairs on a heavy elephant's body, which is negligible. So, in a day, in the same place, the sun should be the same distance from the earth in the morning and at noon.