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Yes, the Earth is a star, and the Sun is a star.
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A single star does not rotate, and a double star, i.e., a white dwarf, rotates both in mutual orbit and on its own.
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All the planets rotate and so do the stars.
The axis of rotation all crosses the center of mass of the celestial body. All moons, planets, stars, and galaxies revolve around their own axis The Earth's rotation is the circular motion of the Earth along an axis that passes through the Earth's center (the axis of rotation, also called the Earth's axis).
The time for the Earth's rotation is 23 hours, 56 minutes and 4 seconds; The moon rotates in the same time as it does around the earth, which is 27 days, 7 hours, 43 minutes and seconds. The angle between the Earth's axis of rotation and the ecliptic plane.
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1. The stars are definitely turning.
2. All the celestial bodies in the universe are constantly rotating.
3. Stars are in relative rest and absolute motion.
All stars in the universe are constantly rotating, and because of the different references, we cannot judge the movement of the stars and the direction of rotation. But strictly speaking, the rotation of the stars is constant, and it will not stop. Therefore, for us, we cannot speculate about the specific orientation of the frame of reference and the reference, and therefore cannot assert how the star moves, but it is certain that the star is in constant motion.
There is no such thing as absolute stillness in the universeSo for us, everything in the world is in constant motion. Therefore, the stars in the universe are not excluded, so sometimes the reference object and the reference system are different, maybe in our eyes the stars are stationary, but objectively the stars are constantly rotating.
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Yes, the stars in the universe are rotating like the planets, and they are orbiting the center of the galaxy at the same time as the star is autobiographing.
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Many people think that stars don't rotate, but in fact, stars in the universe do. Galaxies are constantly turning, just as the sun is revolving around the galactic center.
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Yes, in fact, many stars in the universe are rotating, but it is a pity that we can't observe them well.
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Stars rotate, of course, and they all say that they rotate with the sun. With the sun, they can rotate in order, and they can live like this for a long time.
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To put it simply, let's start with the universe. Matter (celestial bodies, meteorites), arrogant** gets kinetic energy, moves in the universe However, gravitational force makes stones form stars, and objects are in a state of no external force in space (not to mention gravity for the time being), so moving objects will not stop. And the gravitational pull stone hits the celestial body, other meteorites, and adds an external force, like you rub your hand against a soccer ball in water, forming a rotation.
As I mentioned earlier, celestial bodies and meteorites do not stop in space, but when gravity is added, there will be a force between the celestial bodies that will pull each other, and the meteorite in action will be changed by the gravitational force of the star, just like if you hold a shot put ball and rotate at an average speed. In fact, the revolution is pulled and pulled by the person (the mass is as large as a star, as small as a stone) will occur, but under the pull of the star and the stone, the mass of the star is larger than that of the stone, so the movement amplitude is smaller than that of the stone In fact, the revolution is rotated with each other --Nebula:
In fact, the gravel and ice in the gravitational orbit of the planet, and the rotation around the star are all the principle of revolution.
Gravitational forces make stones form stars" ?Stars are mostly made up of hydrogen! At the beginning of the universe, there was mainly hydrogen, heavy hydrogen, helium, etc., and there was no stone! Stone is a product of supernovae**
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Because after the big **, various stars produce angular momentum under the action of gravity, and the speed of rotation is accelerated. As a star system stabilizes, so does this rotation. Now that angular momentum and rotational forces have been formed in space, planets are autobiographical.
Because it is almost in a vacuum, there is no resistance, and if there are no external factors, this rotation will continue forever.
At a certain point in the development of the universe, in the formation of galaxies, stars, and planets, motion, especially rotation, accompanies the formation of stars and planets from beginning to end, rather than beginning to rotate or revolve later for some reason.
The universe is filled with a uniform cloud of neutral atomic gas, and the large volume gas cloud is caused by the initial energy of the universe when the rotation of its own planet and the later gravitational and repulsive forces of the universe, which will not be easily changed in the space without resistance.
The solar system is a very common star system among the hundreds of billions of stars in the Milky Way, and the solar system is also revolving around the center of the Milky Way, and it takes about 100 million years to rotate for a cycle. The Milky Way is one of the dozens of galaxies in the cluster, and it is also orbiting around the center of the cluster, about 100 billion years.
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The primordial nebulae that formed the solar system originally had angular momentum, and after the formation of the solar and planetary systems, its angular momentum would not be lost, but it would inevitably be redistributed, and each star would get a certain amount of angular momentum from the primordial nebula in the long process of accumulating matter. Since angular momentum is conserved, the planets will also rotate faster and faster during contraction.
The earth is no exception, the angular momentum it obtains is mainly distributed in the rotation of the earth around the sun, the mutual rotation of the earth-moon system and the rotation of the earth, which is the origin of the earth's rotation, but to really analyze the orbital motion and rotation motion of the earth and other major planets still requires scientists to do a lot of research work.
That is to say, in the formation of the Earth, motion, especially rotation, accompanied the formation of the Earth from beginning to end, rather than the beginning of its rotation or revolution for some reason after the formation of the Earth.
The predecessor of the solar system was a dense cloud, driven by a certain force that attracted each other, and this accretion process made the density gradually larger, which accelerated the accretion process. On the one hand, the centripetal accretion accumulation becomes the sun, and on the other hand, the gas gradually develops into a flattened shape, and in the process of development, the potential energy becomes kinetic energy, and finally the whole thing turns.
At the beginning of the rotation, there are those who turn this way, and those who turn that way, after a certain direction prevails, they all become one direction, and this direction is the right-hand rule that is now discovered, and there may be other solar systems that are left-handed rules, but in our solar system it is the right-hand rule. The energy of the earth's rotation** is caused by the eventual transformation of material potential energy into kinetic energy, which ultimately means that the earth rotates on the one hand and rotates on the other.
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I think the inevitable consequence of the formation of this planet....The formation of planets is the formation of matter in the universe by constantly rotating and attracting together...So, at first, it was fast to spin and then gradually slower.
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There is no absolutely stationary object in the universe, and a massive celestial body subjected to various external forces must rely on rotation to maintain its balance in order to maintain its own motion.
For example, if you don't move, you are deliberately rebelling against this movement, which is not the case with celestial bodies in the universe, which can only be maintained by rotation.
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There is an initial momentum. Produced during the formation process.
It moves, it rotates, it rotates around the Milky Way, around the core of the Milky Way.
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It's not a shame, people's minds are constantly changing, and it's normal to change your mind.