When will the Sun come near us?

The Earth's orbit around the Sun is a nearly circular ellipse, 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 over the course of a year or even a day.

The closest time of the day should be 2 p.m., when the sun shines directly on the Tropic of Capricorn and the temperature is at its highest.

In one year, the Earth's July (autumnal equinox) is at aphelion, and the distance between the Sun and the Earth reaches its maximum, which is about 100 million kilometers.

January (vernal equinox) is at perihelion. 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.

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.

If you had to compare the distance between the sun and the earth in the morning and at noon, one would think that the sun at noon would be closer, because the morning sun shines from the horizon and is a distance of the radius of the earth than the sun at noon.

From the above data, it can be seen that from January to July, in half a year, the change range of the distance between the sun and the earth reached 5 million kilometers (100 million kilometers minus 100 million kilometers), the change value in each day was 10,000 kilometers, from morning to noon for about 6 hours, a quarter of a day, and the change value of the distance between the sun and the earth was about 6700 kilometers, which was greater than the radius of the earth.

If the Earth is moving towards perihelion, from morning to noon, it is indeed closer to the distance of the Earth's radius (more than 6,300 kilometers), and on the other hand, after a quarter of a day, the distance between the Sun and the Earth is also 6,700 kilometers.

But if the earth is moving towards aphelion, from morning to noon, on the one hand, from the earth to the sun is also a distance of about a radius of the earth (more than 6,300 kilometers), but on the other hand, after a quarter of a day, the distance between the sun and the earth is 6,700 kilometers, and the two are superimposed, and the noon is even farther from the sun.

Therefore, whether it is closer to the sun at noon or closer to the sun in the morning depends on the specific problem and specific analysis.

It is closest to the Earth from the Sun around the winter solstice (but not the winter solstice, the perihelion of the Earth this year is around 9 a.m. on January 8), and it is furthest from the Sun on the summer solstice (again, it does not happen to be on the summer solstice).

If we want to say why, we can only say that the earth's orbit is like this, and the objective world is not subject to human will.

Just kidding, why do you say that? Just measure the hour angle of the sun (and eliminate atmospheric refraction, of course). I remember that I saw ** like this, observing the Sun at perihelion and not observing the Sun at aphelion, which is about 4 years larger.

Every year around the winter solstice, but not necessarily around the winter solstice. This location is called perihelion.

When the sun is near us.

The closest the Sun is to us is on December 22 or 23, the winter solstice, and the farthest from us is on the summer solstice.

June 22 or 23. On the winter solstice, the Sun is 100 million kilometers away from the Earth, and on the summer solstice, the Sun is 100 million kilometers away from the Earth. The Sun is the solar system.

The center of the celestial body, which occupies the overall mass of the solar system.

According to Kepler's law.

The Earth revolves around the Sun in an elliptical orbit, and the Sun is at one of the focal points of the ellipse, so that perihelion occurs.

It is equal to the dust point of the far sun, with the sun as the focus, and the area swept by the earth's motion per unit of time.

The orbit of the Earth's stars around the Sun is roughly a rough ellipse, and its major and minor axes are not much different, but can be approximated as a perfect circle. The Sun is at one of the focal points of this ellipse, so when the stars move in orbit, the distance to the Sun is sometimes close and sometimes far, and the closest position to the Sun is called perihelion.

At the beginning of July every year, the Earth is farthest from the Sun, and this position is called aphelion.

The closest day to us is 12 o'clock at noon, and the closest day to us is December 22 or 23, the day of the winter solstice. The closest time of the day is when the sun is directly above the earth, and it is usually in the center, that is, at 12 o'clock in the middle of the day. The closest time of year the Earth is to the Sun, perihelion.

That is, the winter solstice, December 22 or 23.

Reasons: 1. The earth rotates.

The orbit is elliptical, so the distance between the center of the earth and the heliocentric varies from day to day.

2. The sunrise and sunset time changes day by day throughout the year, and the sunrise and sunset time of the same day varies with latitude.

3. Due to the rotation of the earth.

Due to the slow change in the direction of the axis and the influence of the gravitational pull of the planets on the Earth's orbit, the closest dates between the center of the earth and the heliocentric are not fixed.

<> one day, the closest to us is 12 o'clock at noon, and the closest to us a year is December 22 or 23, the day of the winter solstice. The closest time of the day is when the Sun is directly above the Earth, which is usually in the center, that is, at 12 o'clock in the afternoon. The closest time of year the Earth is to the Sun is the perihelion, which is the winter solstice, December 22 or 23.

The closest day <> us is 12 o'clock at noon, and the closest day to us in a year is December 22 or 23, the winter solstice. The closest time of the day is when the sun is directly above the earth, and it is generally in the middle of the day, that is, at twelve o'clock in the afternoon. The closest time the Earth is to the Sun is the perihelion of the year, which is the winter solstice, December 22 or 23.

January is the closest to the sun, and July is the farthest from the sun, with the closest point to the sun at 12 noon and 12 p.m. at 12 p.m.

nbsp;We all know that in a year, the intensity of sunlight felt at different points in time is different, so when is the sun closest and farthest from us, let's take you to find out.

Details:

At noon, the sun is closest to us at noon, because think of it, the highest point of the bulge of the sphere is the closest point to the sun. As for the time of day, since the day changes with the seasons, strictly speaking, a thin column of vertical discs is erected on the horizontal disk of the day, and when this cylinder is not projected by the sun, this is the time of the day when you are too far away, that is, when your shadow is just under your feet, the sun is closest to you. Or rather, because of the difference in latitude, when your shadow is the smallest, you are closest to the sun.

At the beginning of January every year, the Earth is closest to the Sun's thicket, about 100 million kilometers, which is called perihelion. The Earth's orbit is faster near perihelion; At the beginning of July every year, the Earth is farthest from the Sun, about 100 million kilometers, which is called aphelion. The rocky cherry blossoms rotate at a slower rate near aphelion.

During the day, the position of the Earth in its orbit will not change significantly, so at 12 o'clock in the afternoon, the Sun is overhead, which is the closest point to the Earth; At 12 o'clock in the evening, there is a distance of one Earth's diameter from 12 o'clock in the afternoon, which is the farthest point.