How far is the Sun from Earth? How far away is the Sun from the Earth

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.

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.

The distance between the sun and the earth].

The maximum distance between the Earth and the Sun is in kilometers, about the beginning of July, and the minimum distance is in kilometers, about the beginning of January. The average distance is kilometers. The distance between the Earth and the Sun is taken as an astronomical unit and rounded up to 150 million kilometers.

This distance is equivalent to 11,700 times the diameter of the Earth, it takes 17 years to reach the Sun by an airplane traveling at 1,000 kilometers per hour, and it takes more than 150 days to launch a spacecraft with kilometers per second, and it takes more than 8 minutes for the sun's rays to reach the Earth.

The distance between the Sun and the Earth is called an "astronomical unit" in astronomy, and it is an important number, and many astronomical figures are based on it. There are several ways to measure the distance between the Sun and the Earth, one is to use the transit of Venus (that is, the Sun, Venus and the Earth are just in a straight line); Another way is to use asteroids to measure the distance between the sun and the Earth. Historically, the distance from the Earth to the Sun was measured by the former method, and the average distance between the Sun and the Earth was calculated in this way, that is, a radar wave was emitted from the Earth, hit Venus, and then reflected back from Venus.

The average distance between the Sun and the Earth measured using this method is 149,597,870 km, which is about 15,000 km.

The Earth's orbit around the Sun is an elliptical orbit, so the maximum distance between the Sun and the Earth is 152.1 million km (the Earth is at aphelion); The minimum is 147.1 million km (the Earth is at perihelion); The average is 149.6 million kilometres; This is an astronomical unit, which was established by the International Astronomical Union in 1976 as 149597870 kilometers and has been in use since 1984. At this distance, it takes only 8 minutes and 18 seconds for sunlight to reach the Earth's surface.

The farthest distance between the Earth and the Sun (aphelion): 152.1 million km, the closest (perihelion): 147.1 million km.

The farthest distance between the Moon and the Earth (apogee): 406,610 km, the closest (perigee): 356,330 km.

When the Sun is closest to the Moon, the Moon should be between the Sun and the Earth, the Earth is at perihelion, and the Moon is at apogee, and the distance should be 147.1 million km to 406,610 km. When the Sun and the Moon are farthest away, the Earth should be between the Sun and the Moon, and the Earth is at aphelion, and the Moon is at the apogee, and the distance should be 152.1 million km + 406,610 km.

However, it should be noted that the distance between the Earth and the Sun is more than 10,000 kilometers, that is, more than 100 million kilometers, and the distance between the Earth and the Moon is only a few hundred thousand kilometers. The distance between the Sun and the Earth is hundreds of times the distance between the Earth and the Moon. Therefore, the above addition and subtraction is equivalent to adding 1 or subtracting 1 from a few hundred, and there is little change to the original hundred, so the farthest distance between the sun and the moon can be approximated as the farthest distance between the sun and the earth, and the closest distance between the sun and the moon can also be approximated as the closest distance between the sun and the earth.

Average distance between the Sun and the Earth (1 astronomical unit): meters (150 million km) Maximum distance between the Sun and the Earth: meters.

Closest distance between Sun and Earth: m.

The difference between aphelion and perihelion is 5 million kilometers.

Because it orbits in an elliptical orbit, the earth revolves near and far around the sun, which is also the reason why the earth has four distinct seasons.

The minimum is 100 million kilometers, and the maximum is 100 million kilometers.

Light is 300,000 kilometers per second, and it takes 8 minutes to reach the earth, from which it is calculated: 300,000 x 8 = 2,400,000 kilometers.

The Sun is about 100 million kilometers away from the Earth. The average distance from the sun to the earth is an astronomical unit, that is, about 100 million kilometers, which is about the speed of light.

The celestial bodies are too close to each other, and it is extremely inconvenient to use a light-year meter, so it is generally more appropriate to use astronomical units, if you are out of the solar system, for example, to describe the size of the Oort cloud with light years.

The distance of the Sun from the planetsThe distance of Mars is approximately: light years, Jupiter.

The distance is approximately: light years, Saturn.

The distance of Uranus is approximate: light years, and the distance of Uranus is about: light years, Neptune.

The distance is about: light minutes approx.

The Sun is about 100 million kilometers away from the Earth.

The average distance from the sun to the earth is one astronomical unit, that is, about 100 million kilometers, which is about the speed of light, which is about the fraction of light. It is extremely inconvenient to use a light-year meter, and it is generally more appropriate to use astronomical units.

Sun-Earth Distance:

Sun-Earth distance, also known as solar distance, refers to the length of the straight line from the center of the sun to the center of the earth. Since the Earth's orbit around the Sun is an ellipse and the Sun is at a focal point, this distance changes from time to time.

Its length is about 149597870 kilometers. The distance between the sun and the earth is a unit of length in astronomy, which was once defined by the average distance between the earth and the sun, and this length was determined in astronomy as 1au, that is, an astronomical unit.

We orbit the Sun at a distance of about 150 million kilometers, in fact, since our orbit is an ellipse, this is only an average. In its closest place, the Earth is 147 million kilometers from the Sun. The maximum distance is 152 million kilometers.

km。

The Earth's orbit around the Sun is not a perfect circle, but an ellipse. Therefore, the distance from the Earth to the Sun is always changing. According to scientists, the average distance from the sun to the earth is 149597870700 meters, and the distance is about 100 million kilometers.

It takes 8 minutes for sunlight to reach the Earth.

In astronomy, scientists define the average distance from the sun to the earth as 1 astronomical unit (au), which is used to measure the distance between various celestial bodies in the solar system, which is very convenient.

The surface area of the Earth.

The surface area of the Earth is about 510,101,934 square kilometers, and the volume is about 1,083,319,780,000 cubic kilometers.

The radius of the earth from the center of the earth to the north pole is about 6356 kilometers, and the radius from the center of the earth to the equator is about 6378 kilometers.

The average distance from the Sun to the Earth is about 300,000 kilometers per second. It will be on Earth in about 500 seconds!You don't need to rush to the New Year with a light book....If you have to use light-years to calculate that the royal posture is about equal to light-years, how large is the scale of the visible light-year.