Why does the Moon always follow the same plane? Is the rotation of the Moon the same as that of the

The Moon always faces the Earth in one way because the Moon's autobiographical and orbital periods are the same. To understand this phenomenon, you can do an experiment. Draw a circle and mark the east-west-north-south direction.

You stand in the center of the circle (representing the earth), find a friend, stand on the circle, have his face facing forward (i.e. without twisting his neck), move counterclockwise along the circle, and ask him to keep his face facing the center of the circle as he moves along the circle, which is you. Then such a process basically simulates the rotation of the moon and the earth.

Obviously, in such a process, your friend is always facing you in the face. Here's an explanation of why, in such a process, the revolution period is equal to the rotation period.

See mine below for details, I hope it will help you!

The revolution of the Moon is the same as the rotation period, so it is so.

Just as Bi holds a chain ball in his hand and rotates around himself, he represents the earth and the chain represents the moon, and the side of the chain is always facing him.

If the time is long enough, the Earth will also have only one side of the Sun against the Sun, and the revolution and rotation period will be the same.

No. It is because the rotation time of the moon is the same as that of the moon (it has nothing to do with the earth), and the cycle is a little more than 27 days.

Hope it helps.

No, it's because the rotation of the moon is the same as the rotation time of the moon, so you can draw a diagram.

The Moon's rotation cycle and revolution phase are phased

Same, it is indeed caused by tidal gravity. Due to tidal gravity, the moon's axis pointing toward the Earth will become slightly longer, affecting its rotation and eventually forming a "synchronization".

This phenomenon of "synchronous rotation" is quite common. The most typical is the relationship between Pluto and its moon Pluto, which are synchronized with each other. Some say they are "sister planets". It is also said that the Earth and the Moon are also "sister planets".

The Earth's tidal action on the Moon makes the Moon's rotation period coincide with its orbital period.

Lunar Sports Specialty.

The Earth and the Moon form a genus.

celestial systems called Earth-Moon systems. In the Earth-Moon system, the Earth is the central celestial body, so the movement of the Earth-Moon system is generally described as the orbital motion of the Moon towards the Earth. However, the actual motion of the Earth-Moon system is the orbital motion of the Earth and the Moon in relation to their common center of mass.

The Earth and the Moon orbit their common center of mass for 27 days, 7 hours, 43 minutes and seconds, which is the day, and the position of the common center of mass is about 4,671 kilometers from the center of the Earth.

There are mutual interactions between celestial bodies in the universe, among which the so-called"Tidal action"It is one of the important forms. Due to the relatively close proximity between the Earth and the Moon, this tidal effect is more pronounced. Among the celestial bodies of the solar system, the tidal action of the Moon on the Earth is about twice that of the Sun on the Earth, and much greater than the tidal action of other celestial bodies on the Earth.

Due to the tidal friction of the Moon, the Earth's self-rotation slows down, and the daily time becomes longer, increasing by nearly two thousandths of a second on average in a day every 100 years. At the same time, due to the slow self-transformation of the Earth, the Moon is slowly spiraling outward, and the Moon is currently moving away from the Earth at a rate of 3.4 centimeters per year. In the same way, the tidal action of the Earth on the Moon causes the Moon's rotation period to become the same as its orbital period.

Both the rotation and revolution of the Moon are from west to east. This rotation of the Moon is called synchronous rotation. Therefore, since ancient times, people have seen the moon always facing us on the same side.

Why synchronization is a mystery for the ages.

A lot of science fiction works here.

The general introduction is as follows:

Rotation back cycle.

27 days and 7 hours to answer 43 minutes and seconds.

synchronous rotation) average revolution period.

27 days, 7 hours, 43 minutes and seconds.

Two sides of the moon.

The Moon is a synchronous satellite. Therefore, the front of the Moon is always facing the Earth. On the other hand, the far side of the Moon is mostly invisible, except in the area near the edge of the Moon's surface which is occasionally visible due to the movement of the scales.

In the days when there were no probes, the far side of the moon was an unknown world.

One of the great features of the far side of the Moon is that it has almost no of the darker lunar features of the Lunar Sea. And when the probe is on the far side of the moon, it will not be able to communicate directly with Earth.

Because the Moon's rotation period is exactly the same as its orbital period, we can only see that the Moon is always facing the same Earth. Since the early days of the Moon's formation, the Moon has been slowed down by a moment of force called 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 Moon is both rotating and revolving, and the angular velocity of the rotation is equal to the angular velocity of the revolution.

That is, rotation is also revolutionary.

Most planets and moons rotate and orbit.

But the way of rotation is not necessarily.

For example, the tilt of the Earth's rotation (i.e., the angle between the axis of rotation and the orbit of the revolution) is about 66 degrees. But the non-vertical rotation of the earth is not surprising, among the planets of the solar system, there are reverse rotations, some lie down rotation, and in general, rotation and revolution do not seem to necessarily have a relationship.

Absolutely.

The rotation period of the Moon is a day, which is exactly a sidereal month, no more and no less. So we can't always see the far side of the moon.

Of course, since the Moon's orbit around the Earth is also an elliptical orbit, with perigee and apogee, the rotation speed does not match the angular velocity in different parts of the orbit, so we can see that the lunar surface is not actually 50%, but about 59%. However, in terms of the entire orbit, the rotation period of the Moon is still absolutely consistent with the rotation period.

I don't think it can be understood in the sense of the first floor.

I think it should be explained to you most clearly, the cycle of the moon's rotation and revolution is the same, that is, the moon revolves around the earth, and he also rotates once, I will design a figure for you, for example, two rings with gears, one ring is fixed, and the other circle revolves around this ring, it is the interlocking motion between gears, there can be such a situation, that is, when the two rings are the same size, then, When you find that the rotating circle revolves around the fixed ring, it happens to make a revolution itself, that is, the rotation and revolution are the same, that is, every point on the fixed circle can only touch the fixed point on the rotating ring, that is, as you said, we can only see one side of the moon. (A circle of people on the earth sees exactly a circle of faces on the moon.) 4, the first floor is not very accurate, then it becomes the moon (girls) revolves around the earth (boys) and also rotates.

The reality is that the moon rotates once and the earth rotates more than twenty-seven times. It can be changed to a boy turning in a circle, and the girl's eyes (not hands) are always staring at the boy and going around the boy, at this time, the boy turns 27 times and the girl goes around the boy, it's like. But I didn't dance like that.

2. The axis of rotation of the moon points to the north pole of the moon.

If we take the Earth as a frame of reference, then the axis of rotation of the Moon is almost perpendicular to the plane of the Moon's orbit, and the rotation period of the Moon is almost equal to the rotation period, so we only see one side of the Moon. , 2, well, you can do a thought experiment. Just like boys and girls holding hands and dancing in circles at a sorority ball, girls are always facing boys.

It can be assumed that the girl is "rotating" around the boy, and when other people look outside, the girl herself is also rotating, because sometimes you can see the back, sometimes you can see the side, sometimes you can see the front, and the girl "is also rotating at the same time as she rotates", and one revolution is exactly one rotation.

So you can explain the landlord's problem...0, why can we only see one side of the moon when the rotation and revolution period of the moon are the same?

The rotation and revolution period of the Moon is 27 days, and the rotation of the Earth is 1 day. They are all rotating, how to understand the phrase (the moon rotates and revolutions in the same period, so we can only see one side of the moon)?

First of all, the moon originally rotates from west to east, and it is consistent with the direction of rotation of the earth. But the Moon also rises in the east and sets in the west, so it can only be said that the angular velocity of the Moon is smaller than that of the Earth.

The rotation period of the moon is exactly the same as the rotation period, so from another angle, whether the earth rotates or not, the moon always uses its side to face the earth.

It's a matter of time and space.

At any given moment, you can only be in a single direction of the moon, so you can only see one side, and at this time.

The far side of the moon is relative to you, and since it is carrying you on its back, how can you see it, like.

The Moon is perpendicular to the Earth's axis.

A plane with the equator.

What about the other thing. The rotation period of the Moon is the same as the rotation period.

It's just a month, and she's spinning for a week.

It has also circled the Earth, but this should have nothing to do with seeing only one side of the Moon on Earth, just because of a certain relative direction at a certain time.

You can imagine the motion of celestial bodies, or take a simple object for a demonstration.

Because the rotation period of the moon is the same as the revolution period".

That is: when the moon.

When he is doing the rotational motion, he is also orbiting the earth.

I do a revolution movement, and.

Both of these movements.

Cycle. It's basically the same;

When people look at the moon on the earth, it rises in the east and sets in the west

This rotational motion, every time the angle changes by one degree (the man's eyes see him rise by one degree), at the same time, he himself rotates the angle by one degree, and the result is still the same side, facing the person.

Hug the Lord, do you understand?

lz take a ball and spin it yourself...

ps, upstairs nonsense, the rotation period of the moon and the revolution period are the same due to tidal forces.

Why is the rotation of the moon the same as the rotation period

A:

Because the Moon is tidally locked by the Earth.

The gravitational pull of the Earth on the Moon is stronger at the end closer to the Earth than at the end away from the Earth, which makes the Moon stretch into an ellipsoid. This gravitational difference as a whole is called tidal force, and the tides on the earth are affected by the tidal force of the moon, which causes the sea water to rise and fall differently relative to the moon. If you can understand the tides on Earth, then the solid tides on the Moon are also well understood.

When the rotation of the ellipsoidal moon is faster than the revolution, for example, from the green position in the upper right to the red position in the lower right position in the figure above, then the gravitational force from the earth at both ends of the ellipsoid will no longer be in the same direction, so that a moment opposite to the direction of rotation will be generated, so that the rotation of the ellipsoid tends to be synchronized with the revolution. This lock-in results in us seeing almost only one side of the Moon on Earth.

This makes the far side of the moon a mysterious region for humans. In 2018, Chinese scientists overcame many difficulties and successfully hovered the Queqiao relay satellite at the Lagrange point on the far side of the moon (that is, the equilibrium point where gravity is just enough to maintain synchronous revolution with the Earth-Moon system), providing a communication source guarantee for the lunar exploration activities of Chang'e-4 and subsequent satellites.

By extension, is it possible that the Earth's rotation is also locked by the Moon? Of course! Paleontologists have calculated that 100 million years ago the Earth had 412 days in a year, one-eighth more than today, indicating that the Earth's rotation has indeed slowed down.

So where does this rotating kinetic energy go? are transferred to the moon's rotational energy, which also causes the moon to move away from the earth at a rate of about a year. That is, perhaps in the future, the rotation period of the Moon and the rotation period of the Earth will also be synchronized.

At that time, a moon will be relatively stationary in the sky above one part of the Earth, and the other side of the region will lose the moonlit night forever. Pickpocketing.

by Pastoral Fish