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Sort of. The explanation is as follows:
On a moving object, except for the points on the axis of rotation, all other points move in a circular motion of different sizes around the same axis of rotation, which is called "rotation". The trajectory of each point on an object is a concentric circle centered on the axis of rotation. At the same moment, the linear velocity and linear acceleration at various points on the rotating body are not the same.
The point closer to the axis of rotation has less linear velocity and linear acceleration, but the angular velocity and angular acceleration are the same. When a rigid body rotates around a fixed axis, it is called "fixed-axis rotation", such as the movement of a flywheel on a door, window, machine, etc. When a rigid body rotates around a fixed point, it is called "fixed-point rotation", such as the movement of the rotor of a gyrometer.
Sometimes, when a point moves in a circular motion around another fixed point, it is also called "the rotation of that point around the center point", such as the motion of a planet around a star. the movement of electrons around the nucleus, etc.
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It should also be counted.
Because to determine whether a star is in rotational motion, the basis is to determine whether it has a center of rotation (or axis of rotation).
This center can be within the star, which is the rotation.
It can also be outside the stars, which is the revolution.
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Not counted. Rotation is a state of motion of its own, and rotation is an obvious one;
The revolution is just a trajectory of movement, and it has nothing to do with rotation.
You can express your own opinions, please count, thank you.
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Moon. The direction of the revolution around the Earth is from west to east. The Moon orbits the Earth in an elliptical orbit. The great circle of this orbital plane on the celestial sphere is called the "white path". 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.
Definition of revolution: The rotation of a celestial body around another celestial body is called revolution. Solar system.
The planets revolve around the sun, or the moons of the planets revolve around the planets, which is called revolution.
Revolutions are the cyclic motion of one object around another object, and is generally used to describe the activity of a planet around a star or a moon around a planet. The orbit can be circle, ellipse, hyperbola.
or parabola. The direction of rotation is from west to east.
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The average distance between the Earth and the Moon is 384,400 kilometers. If a person were to move kilometers per second at the speed of light, it would only take about a second or so to get from the Earth to the Moon.
After research, the Moon is leaving the Earth at a distance of four centimeters per year. The distance between the Moon and the Earth's perigee is 10,000 kilometers; The farthest apogee distance from Earth is 10,000 kilometers.
The rotation of the moon
The Moon rotates while revolving around the Earth, and the period day is exactly a sidereal month, so we can't see the far side of the Moon. This phenomenon is called "synchronous rotation", or "tide locking", and is almost a universal law in the world of solar system satellites. It is thought to be the result of the long-term tidal action of satellites on planets.
The balance movement is a wonderful phenomenon that allows us to see 59% of the surface of the moon.
The Moon moves half a degree per hour relative to the background starry sky, i.e. it is similar to the apparent diameter of the Moon's surface. Unlike other satellites, such as Hyo, the Moon's orbital plane is closer to the ecliptic plane, rather than near the Earth's equatorial plane.
If the earth is used as a reference, the sun revolves around the earth, and the sun is moving, including the planets around the earth, which can be seen as moving around the earth. Just as we stand on the earth and see the sun rise and set in the west, we can see the sun moving with the earth as a reference. That is to say: >>>More
Yes, frictionless motion does not require force to maintain, so the revolution of the earth has nothing to do with the sun. Assuming that the gravitational pull of the Sun could cause the Earth to accelerate from a standstill, the Earth would have to continue to accelerate, not as it does now. If it really all started at rest, there would be only the sun left in the solar system, because everything fell into it. >>>More
The average speed of the Moon's revolution around the Earth is kilometers and seconds. The centripetal acceleration of the revolution of the Moon is m s. >>>More
The planets revolve around the stars, and the sun is the star! The Earth is a planet. >>>More
The Sun also revolves around the center of the Milky Way in the Milky Way, and it takes more than 200 million years to make one revolution. So what happens as the Sun revolves around the center of the Milky Way?