How far is Neptune from the earth? How far is Neptune from the earth? It's from the earth, not from the sun.

The long radius of Neptune's orbit is 30.24 astronomical units. Because the orbital eccentricity of Neptune and the earth is very small, it can be approximately regarded as a circle. Therefore, it can be concluded that the closest distance is 29.24 astronomical units when Neptune impacts the sun (the sun, the earth and Neptune line up in order)

How far are Mercury, Venus, earth, Mars, Jupiter, Saturn, Uranus and Neptune from the sun?

Take the distance from the earth to the sun as a unit
Mercury 0.387
Venus 0.723
Earth 1.000
Mars 1.524
Jupiter 5.205
Saturn 9.576
Uranus 19.18
Neptune 30.13
Pluto 39087

How far is mercury, Venus, earth, Mars, Jupiter, Saturn, Uranus and Neptune from the sun
Simple answer

Mercury is 57910000 km away from the sun, Venus is 108200000 km away from the sun, earth is 14960000 km, Mars is 227940000 km away from the sun, Jupiter is 778330000 km away from the sun, Saturn is 1429400000 km away from the sun, Uranus is 2870990000 km away from the sun

Why doesn't the sun go around the earth? Is there any confirmation around the celestial body and the central celestial body?
According to Newton's third law, the mutual gravitation between the surrounding celestial body and the central celestial body is equal

Because the mass of the sun is much larger than that of the earth, the system of the sun and the earth moves around the common center of mass of the two. And this common center of mass is close to the sun, so it is generally considered that the earth moves around the sun
This will give you the answer to the second question: the mass of the central body
This is like, you hold a basketball, you can let the basketball around you, and if you hold the basketball, you can only around the basketball

Why does the sun shine? Why does the earth go around the sun instead of other stars?

The energy produced by the sun is radiated into the space. The temperature of the sun's core is extremely high, up to 15 million ℃, and the pressure is also extremely high, which makes the thermonuclear reaction from hydrogen fusion to helium take place, thus releasing a great deal of energy. These energy can be transferred to the bottom of the solar photosphere through the material transfer in the radiation layer and troposphere, From the angle of gravitation - F = GMM / r2 - the magnitude of gravitation is directly proportional to the product of the mass of the celestial body and inversely proportional to the square of the distance of the celestial body

What is it that celestial bodies don't move between the sun and the earth

In astronomy, except for special cases, the motion is generally based on the reference of the central celestial body (or the center of a large celestial body) of the celestial system in which the celestial body under study is a secondary celestial body. For example, the moon's rotation around the earth is based on the reference of the earth (Earth Moon system), and the sun's rotation around the center of the galaxy is based on the reference of the center of the galaxy (Galaxy)
So your statement may be right to a certain extent, but there is no such expression in astronomy, so it is right to say that the earth revolves around the sun
According to the law of Kepler, the distance between the galaxy and the earth is about 49.1 billion kilometers, and the distance between the galaxy and the sun is about 49.1 billion kilometers

How to measure the distance between celestial bodies
When we are on earth, how can we know the distance from stars hundreds of millions or tens of billions of light years away? How can we measure it

This question is a bit difficult. It's a good question
Let me talk about the principle. Take the Hubble Space Telescope as an example. It receives microwaves from all directions of the universe. According to the red shift in the Doppler effect, when the light source is far away from us, the wavelength of the light will become longer, because of the dissipation of energy, but the speed remains the same, Each band has a corresponding distance according to the equation of Doppler effect, and the wavelength becomes longer as the distance between the star and the earth increases. When our Hubble direction is in a certain band, the microwave in some regions of the microwave image is more concentrated, it means that there are celestial bodies in this region, but the range of each band is very small, The distance between the celestial body and the earth can be solved by substituting the wavelength of the wave band into the equation to get a more accurate distance. However, the distance between the celestial body and the earth in a period of time is approximately certain, and the wavelength of the light emitted by the celestial body is certain when it is observed by us, In fact, scientists have already calculated the distance from the earth corresponding to each band, and the objects appearing in the cosmic microwave image of this band almost have the same distance from the earth
Let's give you some knowledge about Hubble imaging technology. After confirming the existence of a celestial body, we can make more accurate microwave imaging of the region where the celestial body is located. Divide the large band into several small bands, and then the three-dimensional histogram of microwave in different bands of each part of the celestial body will appear. Then we can replace the corresponding bands with different visible bands, It presents a beautiful image, which is actually the final image of the computer

How to measure the distance between celestial bodies?

It's not easy to measure the distance between celestial bodies by trigonometric parallax method. Astronomers divide the celestial bodies to be measured into several grades according to the distance. The nearest celestial bodies are not more than 100 light years away from us (1 light year = 9.46 &  1012km). Astronomers use trigonometric parallax method to measure

There's a question about astronomers measuring the distance between stars
I have just learned that astronomers calculate the distance from the earth by the brightness emitted by stars. But if there is a layer far away from the earth that can weaken the light, then the observed brightness will not be accurate? (you can say that there is a sudden change that will attract the attention of the observer, Let's assume that the layer of tissue that weakens the light is transparent or unobservable and gradually weakens the light.)?

Let's do a simple experiment: stretch out your right thumb, alternately close and open your eyes, and you will find that your thumb moves to the left and right of the background. This is parallax

How do humans measure the distance between stars

1) Trigonometric parallax is the difference between the object and the background observed by the observer when he sees the same object at two different positions. Because the earth moves around the sun for an annual period, the observer can detect the change of the direction of the celestial body when the earth is on this side and the other side of the orbit

How far is Neptune from the earth? How far is Neptune from the earth? It's from the earth, not from the sun.