How far is the sun from the earth 20 and how far is the sun from the earth

The distance of the Sun from the Earth is eight and a half minutes light-years (the distance of one light-year, which is 300,000 kilometers per second multiplied by the seconds of a year).

That's 10,000 kilometers, 150 million kilometers.

The Sun is located about 100 million kilometers from the Earth, i.e., one astronomical unit.

149.6 million kilometers, so it takes about 500 seconds for sunlight to reach the Earth.

Sunlight takes about 8 minutes to the earth, and the distance is natural. Moreover, the Earth's orbit is divided into perihelion and aphelion, which is correct.

150 million kilometers away, ensure that it is correct, give it to me, if you don't believe it, you can check it on the Internet, look through the book, and look it up to you.

Generally speaking, the average distance between the Sun and Earth: 1549597870km.

Specifically: the average distance between the Sun and the Earth (meters).

Maximum distance between Sun and Earth (m).

Closest distance between the Sun and Earth (m).

42 Dafan (my self-created unit of length) 1 Dafan = meter.

It's far away, and you won't be burned to death anyway.

The average distance is an astronomical unit.

If you look it up on the Internet, you won't know it, do you still need to ask?

The maximum distance of the Sun from 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 kilometers; This is an astronomical unit, which was established by the International Astronomical Union in 1976 as 149597870 kilometre 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.

Sun-Earth Distance: Sun-Earth distance is also known as solar distance. Refers to the length of the straight line from heliocentric to geocentric. 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.

Measurement method: 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.

Extended information: The Sun is a star located at the center of the solar system, and it is almost an ideal sphere intertwined with hot plasma and magnetic fields. The diameter of the Sun is about 1,392,000 (kilometers, equivalent to 109 times the diameter of the Earth; It is about 1.3 million times the size of the Earth; Its mass is about 2 10 kilograms (330,000 times that of the Earth). In terms of chemical composition, about three-quarters of the mass of the Sun is now hydrogen, and almost all of the rest is helium, including oxygen, carbon, neon, iron, and other heavy elements with less than 2% of the mass, which uses nuclear fusion to release light and heat into space.

There are already a lot of these problems. I'll give the answer at the end, focusing on how the Sun-Earth distance is measured.

Measuring the distance from the Earth to the Sun is not a simple task, and it is a process that has taken the work of generations of astronomers.

The earliest determination of the distance between the Sun and the Earth began in the 19th century, when there was a celestial phenomenon called the transit of Venus, which is the celestial phenomenon of Venus passing over the surface of the Sun, which is very rare (the last time in our lives will occur on June 6, 2012). But there is a function is to determine the distance between the Sun and the Earth, choose two different places on the earth and check it thoroughly, because of the relationship between the viewing angle, the transit time of Venus will have a little slight deviation, you can use this time difference to measure the distance from the Earth to Venus, and then know the ratio of the Earth to the Sun and Venus to the Sun (Kepler's third law, this is very easy, known in the 17th century). The distance between the Sun and the Earth can be measured.

In modern times, radar waves are used to determine the distance between the Earth and Venus, which is emitted at the time of the conjunction of Venus to determine the distance between the Earth and Venus. If the orbits of the Earth and Venus are circular, the arithmetic average of the two values is the distance between the Sun and the Earth.

But the Earth's orbit and Venus's orbit have a smiling eccentricity, and the Earth's orbit and Venus's orbit are at an angle, even considering that the speed of light is not instantaneous at this range. In short, a series of corrections are to be made.

Now astronomy enthusiasts have the average distance between the sun and the earth at their fingertips, how many people know how many astronomers have condensed the hard work behind this number!

More than 14,400,000 kilometers.

It takes more than 8 minutes at the speed of light, and the speed of light is 300,000 kilometers per second.

The average distance is 100 million kilometers.