Is the plane of the Moon s orbit relatively fixed?

Of course, nothing in the universe is fixed, for example, the orbit of the moon (white channel) is an ellipse, and if the focal length is positioned by one centimeter, the long axis is 18 centimeters (it seems that I don't remember much). The angle between the Moon's axis of rotation and the white surface will also be between + and . The angle between the white and ecliptic is about 5 degrees, but the angle varies at a certain period around 5 degrees, but this angle is too small, so there will be no Moon directly above the Earth's poles (but the Moon can be seen on both levels).

In addition, there is also a certain cycle of changes in the phases of the moon on the moon.

In short, the orbit of the moon is varied, and there are more than 1,500 "differences". But some of the changes are too small to be seen on the graph if the scale is not large enough.

There are angles relative to the equator or ecliptic. But the angle of the Moon relative to the horizon is changing, so from the ground, the Moon's orbit is very complicated. The orbit of the Moon is called the white path.

The moon can be seen at the north and south poles. I once saw a moonset taken in Antarctica, and it was beautiful.

The Moon's orbit relative to the Earth is complex, and we call it the white way.

Although the Moon moves very complex relative to the horizon and sways from side to side, the angle of the sway is very small, at least we don't see the Moon for several days in a row, and it doesn't run over the North Pole or the South Pole so that we can't see it.

Its orbital phase is always relatively fixed, so that the side towards the Earth remains the same.

The average orbital radius is 384,400 km.

Orbital eccentricity.

Perigee distance 363,300 km.

Apogee distance 405,500 km.

The average revolution period is 27 days, 7 hours, 43 minutes and seconds.

The average rpm speed is in kilometers and seconds.

The orbital inclination varies between AND and .

The intersection with the ecliptic plane is the mausoleum.

Ascension node right ascension.

Pergee spokes.

Physical characteristics The diameter of the equator is 3, km.

The diameter of the poles is 3, km.

Flattening of the surface limb area of square kilometers.

Flattening volume cubic kilometers.

Mass kg.

The average density is times that of water.

Equatorial gravitational acceleration m s2

Earth's 1 6

Escape velocity in kilometers and seconds.

Rotation period: 27 days, 7 hours, 43 minutes and seconds.

Synchronous rotation) rotation speed in meters and seconds (at the equator).

The axis of rotation inclination varies between and .

The angle to the ecliptic is.

Albedo at full moon apparent magnitude.

Surface temperature (t) -233 123 (average -23) atmosphere atmospheric pressure 1,000 p.a.

Answer: B

The projection of the Earth's orbit on the celestial sphere is called the ecliptic, and the projection of the Moon's orbit on the celestial sphere is called the white path Li Sui. Therefore, choose B.

The Moon is in the geosynchronous orbit of the Earth, and the Moon cannot orbit synchronously with the Earth because of the difference in the distance, mass, attraction and inclination angle of the two planets, so the Moon cannot operate synchronously although it is in the synchronous orbit with the Earth.

Relevant data show that the mass density of the Moon is significantly thinner than that of the Earth, which makes it impossible for the two planets to orbit synchronously in the same orbit due to hail belts. In general, one of the necessary conditions to ensure that two objects can run synchronously is to have the same mass density, so as to ensure the same running speed to achieve synchronous operation.

The angle of inclination is a condition that is present to all objects in orbit, and these objects are affected by their own factors and maintain a unique angle of inclination. From the point of view of appearance, the angle of inclination of the Moon is not the same as that of the Earth. In this case, it is difficult to achieve synchronous operation, and we can also see through some examples in life that it is almost impossible to synchronize the rotation of two globes with different tilt angles.

They only rotate at different speeds according to the angle at which they are tilted.

Judging from the general orientation, the distance between the Moon and the Earth should be close. However, according to the research and analysis data, the distance between the earth and the moon is still different, so the gravitational force of the two planets is also different. It is certain that planets with a high gravitational pull are moving relatively slowly, while planets with a low gravitational force are moving relatively fast.

The force does not work the same, which also leads to the unsynchronized operation of the two planets.

As we all know, the cycle of the Moon and the cycle of the Earth are also not the same. Usually the period of the Moon's orbit around the Earth is hours, while the period of the Earth's rotation is 24 hours. The different operating cycles of the two planets also make it difficult for the two planets to synchronize their movements.

For example, it is almost impossible to keep two round objects with different rotational speeds in life to keep them running in sync.

There is also information that confirms that the weight of the Moon is not the same as the focus of the Earth. If you think about it from the concept of physics, it is certain that a heavy planet will rotate much faster, while a lighter planet will rotate much slower. In the case of this difference, it is also a factor that prevents the two planets from moving in sync.

The Moon is within the geosynchronous orbit of the Earth, why can't the Moon orbit synchronously with the Earth? The answer to the question should be clear to everyone! Many factors can cause the Moon and the Earth to not move synchronously.

There is also a theory that is the gravitational "brake" effect, according to which the earth will be affected by gravitational drag, and then the "brake effect" will occur, which will directly cause the earth to move slower and slower. When this theory is established, not only will the phenomenon of the Earth and the Moon moving in sync, but it will also occur that the Earth will always face the sun. However, according to this doctrine, it would be at least a hundred years before these conditions occurred.

This is because the distance, mass, and inclination angle of the two planets cannot guarantee that the Moon and the Earth will operate at the same time.

The reason why the moon cannot move synchronously with the earth is that the mass and gravitational force of the earth and the moon are different, so they are within the synchronous range, and they cannot seep into the synchronous motion.

The average orbital radius is 384,400 km.

Orbital eccentricity.

Perigee distance 363,300 km.

Apogee distance 405,500 km.

The average revolution period is 27 days, 7 hours, 43 minutes and seconds.

The average rpm speed is in kilometers and seconds.

The orbital inclination varies between AND and .

The angle to the ecliptic plane is.

Ascension node right ascension.

Pergee spokes.

Physical characteristics The diameter of the equator is 3, km.

The diameter of the poles is 3, km.

The surface area of the flattening rate is as square kilometers as square as a kilometer.

Flattening volume cubic kilometers.

Mass kg.

The average density is times that of water.

Equatorial gravity plus stool has no velocity m s2

Earth's 1 6

Escape velocity in kilometers and seconds.

Rotation period: 27 days, 7 hours, 43 minutes and seconds.

Synchronous rotation) rotation speed in meters and seconds (at the equator).

The axis of rotation inclination varies between and .

The angle to the ecliptic is.

Reflect the jujube acceptance rate.

Apparent magnitude at the time of the full moon.

Surface temperature (t) -233 123 (average -23) atmospheric pressure kPa.

Yes. The Moon orbits the Earth in an elliptical orbit, and the great circle of this orbital plane on the celestial sphere is called the "white channel".

The plane of the white channel does not coincide with the celestial equator, nor is it parallel to the plane of the ecliptic, and the spatial position is constantly changing. The angle of intersection between the white and ecliptic varies between 4°57 and 5°19, with an average value of about 5°09 and a period of about 173 days.

Due to the gravitational pull of the Sun on the Moon, the line connecting the two nodes moves westward in the opposite direction of the ecliptic to the Moon, a phenomenon known as node regression. The node moves 19°21 per year, about one week per year.