Urgent physical geography about the relationship between the motion of the Moon and the Earth

1) Because the rotation period of the Moon is exactly the same as its rotation period, the Earth can only see the Moon facing the Earth with the same face forever.

2) Strictly speaking, the Earth and the Moon orbit around a common center of mass that is 4,700 kilometers away from the center of the Earth (i.e., 2 3 points of the Earth's radius). Since the common center of mass is below the surface of the Earth, the movement of the Earth around the common center of mass appears to be "shaking". From above the Earth's North Pole**, both the Earth and the Moon rotate in a clockwise direction; And the moon also orbits the earth clockwise; Even the earth revolves around the sun in a clockwise hand.

3) Since the early days of the Moon's formation, the Earth has been slowed down by a moment of force, a process known as tidal locking. As a result, part of the angular momentum of the Earth's rotation is converted into the angular momentum of the Moon's orbit around the Earth, with the result that the Moon moves away from the Earth at a rate of about 38 millimeters per year. At the same time, the Earth's rotation is getting slower and slower, and the length of the day is getting longer by 15 microseconds per year.

The gravitational pull exerted by the Moon on the Earth is one of the causes of tidal phenomena.

Very simple. 1.The Moon is the Earth's co-rotating satellite. Its rotation is the same as the revolution period, so.

2.The Moon moves counterclockwise around the Earth, and the Earth moves counterclockwise around the Sun. The rotation of the moon and the rotation of the earth are also counterclockwise.

3.There is a tidal effect. Including ocean tides, crustal tides, atmospheric tides, biological tides, etc. So it has something to do with **, weather, tsunami, high tide and low tide, menstruation, and mood.

1 For the moon is round.

2 Do circular motions.

3 Give the Earth a Gravitational Pull Thinking about the ebb and flow of the tide is the work of the moon's gravity.

<> the rotation of the Earth. and the direction of revolution is from west to east, and the moon also orbits the earth from west to east. You can only see one side of the moon on Earth forever because of its rotation.

As with the orbital period, one side will always face the Earth, from which it can be inferred that the Moon revolves around the Earth from west to east.

The moon, commonly known as the moon, was also known as Taiyin, Xuantu, and Chanjuan in ancient times.

The jade disk is a satellite of the Earth and is the solar system.

The fifth-largest satellite in the medium. The Moon is about a quarter of the diameter of the Earth and about one-eighty-one times the mass of the Earth, and the mass ratio of the moons in the solar system relative to the planets around it. The Moon is the most massive moon, and its surface is covered with craters formed by the impact of small celestial bodies.

The average distance between the Moon and the Earth is about 380,000 kilometers, which is about 30 times the diameter of the Earth.

We have been able to measure the distance between the Earth and the Moon more accurately in recent times, but earlier in time, there are records that astronomers and mathematicians have roughly measured the distance between the Earth and the Moon by their own methods, and this approximate distance is not very different from the more accurate distance measured in modern times.

Theoretically, the distance from the Earth to the Moon is the distance between the two centers, which we can measure. However, in fact, since neither the Earth nor the Moon are very regular in a circle, it is impossible to measure this distance by everyday methods, so before the birth of the method of measuring the distance between the Earth and the Moon by light, we used trigonometric formulas to calculate it.

In the past, some people tried to measure the distance between the Earth and the Moon, and the first to put forward this idea was Aristarchus, who used geometric equations to establish the "Aristarchus" system, which roughly calculated that the distance between the Earth and the Moon was 80 Earth radius, and obtained the value of 509680km. Archimedes then decided that 62 was the correct coefficient, and the result was 395,002 km.

However, this result is still quite different from the more accurate results measured in recent times. In the second century B.C., a mathematician named Hippax and astronomers observed the movement of the moon and periodic solar eclipses, and he believed that the distance between the earth and the moon was 60 times greater than the radius of our earth, and the distance between the earth and the moon with this coefficient was 382260km, which is very close to the 384400km we have measured in modern times, and the wisdom of the ancients is really infinite!

The Moon is too light compared to the Earth, and the Moon's rotation energy is much smaller than the Earth's rotation energy, and the past time is not enough for it to have such an impact.

If the Earth-Moon system is not completely destroyed by the red giant Sun and is not destroyed by the impact of other celestial bodies, the Moon, which is significantly away from its current orbit in 50 billion years, can tidally lock the Earth as well. Then, under the influence of the white dwarf Sun, the Moon will gradually move closer to the Earth and allow the Earth's rotation to accelerate again.

Because the mass of the earth is much larger, but in fact, the moon is indeed locking the earth, the rotation of the earth at the time of the birth of the earth, scientists estimate that it is only 6 hours, and the moon has been rubbing through tidal forces for billions of years before it becomes 24 hours now.

So if it continues, the Earth's day will become longer and longer until the Earth-Moon systems lock into each other. The Moon no longer rises in the east and sets in the west, but is forever fixed in a corner of the sky. But the problem is that this mutual locking is at least tens of billions of years away.

And the life span of the sun is only 5 billion years, so this is almost never possible.

Now the distance between the moon and the earth is getting farther and farther away, not closer and closer. And if this continues, sooner or later the Moon will one day become a geostationary satellite of the Earth. By that time, although the Moon will not be far away, the Earth's rotation will be more than 1,310 hours!

That's about 55 days now. And then the tidal phenomenon of the Earth will be much smaller than it is now, because the gravitational pull of the Moon on the Earth will be much smaller at this time. And since the Moon is too far from the Earth.

The distance between the Moon and the Earth is close to a certain extent, but it is closely related to their mass, density, etc., and their gravitational pull is also different, so it is unlikely that they will rotate together.

The Moon has a rotation, because it is locked by the tidal force of the Earth, so one side is always facing the Earth, which means that its rotation is almost synchronized with the Earth, and the Moon and the Earth are wound around a common center of mass, which is 1000 kilometers from the center of the Earth.

I think it's the reason for the distance from the sun, the reason for gravity.

This is the reason for gravity, the mass of the earth and the mass of the moon are different, and the distance from the sun is also different, so it does not move synchronously.

Because of the difference in gravitational force, the motion caused by different forces is also different.

This has to do with the gravitational pull of the Earth, which affects the movement of the Moon.

Because this is the reason why there is gravity between objects, and the difference in gravity determines the use of motion.

It could be the cause of the Earth's gravity, or it could be the cause of the volume.

It is because of the gravitational force between objects, the gravitational force is different, and the way of motion is also different.

A lot of factors, quality, distance, etc. are the key factors.

Because the mass of the Earth and the Moon are different, the distance from the Sun is also different, and because of gravity, they do not move in sync.

The reason, of course, is that the two are too far apart!

Tidal locking has nothing to do with synchronization.

Tidal locking is that the Moon will always face only one Earth, and it does not rotate relative to the Earth. With respect to the Sun, the Moon makes the same revolution around the Earth as it does one revolution.

Synchronization, that is, the angular velocity of the satellite around the Earth is the same as the angular velocity of the Earth's rotation. Compared to the earth, the high orange beard satellite will never move.

The distance between the Earth and the Moon is 380,000 kilometers, and if the Moon rotates at the same angular velocity as the Earth, its linear velocity is too great. The formula for these two is, the linear velocity of the angular velocity of the distance. If the Moon moves at this linear speed, it flies out of Earth's control.

1. New moon (the first day of the lunar calendar, that is, the new day): 0 degrees;

2. Shangemei month (generally around the second night of the lunar calendar --- about the seventh day of the lunar calendar): 0 degrees --- 90 degrees;

3. First quarter moon (around the eighth day of the lunar calendar): 90 degrees;

4. Gibbous Moon (around the ninth day of the lunar calendar --- about the fourteenth day of the lunar calendar): 90 degrees --- 180 degrees for burial;

5. Full moon (looking at the moon, around the 15th or 16th day of the lunar calendar): 180 degrees;

6. Gibbous Moon (about the 16th lunar --- 23rd of the lunar calendar): 180 degrees--- 270 degrees;

7. The second quarter moon (around the 23rd lunar month): 270 degrees;

8. Xiaemei month (around the end of the --- month around the 24th lunar calendar): 270 degrees--- 360 degrees; In addition, the last day of the lunar month is called the obscure moon; , i.e. missing.

The position relationship between the Moon, the Earth, and the Sun is as follows:

During a solar eclipse: The Sun, Moon, and Earth are in the same straight line, and the Moon is between the Earth and the Sun.

During a lunar eclipse: The Sun, Moon, and Earth are in the same straight line, and the Earth is between the Moon and the Sun.

This is a phenomenon caused by light traveling in a straight line and encountering opaque objects and forming shadows.

The relationship between the sun, the earth, and the moon is too fast:

The sun is the central star of the early Hu solar system, located in the core of the solar system, occupying the mass of the solar system, the eight planets of the solar system and many asteroids and so on revolve around the sun, including the earth.

The Earth is one of the eight planets in the solar system, and if it is calculated according to the distance from the sun, it ranks third in the mu manuscript from near to far, and is a terrestrial planet.

The moon is also known as the moon, which is the only natural satellite of the earth, and its mass is also relatively large, and there are many craters on the surface that are formed by the impact of cosmic celestial bodies. <>