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Do all planets revolve around the same thing? What are the reasons for its rotation? We will answer these questions in this article.
“It depends on the meaning of the rotation,” says Hilary Shaw. “A planet orbiting a full circle is the most complete revolution around its star for an outside observer. Finding a planet that is not spinning is difficult, because a planet usually orbits in the opposite direction of its star for one period of one day equal to its year. ” “.
“We have two planets that do not orbit in the solar system, but what is the probability that a planet’s day is exactly the same as its year?” Hillary added. There are a lot of planets that apply to this. High temperatures and long days and nights will prevent life on this planet, as the sun and other planets move very slowly across the sky while the stars are stationary. “
Mike Falls noted that: “Normally the planets rotate, but the universe contains billions of stars, a number of which must stop rotating, because the solar system or star is made up of clouds of gas, and in the event that this cloud has no angular thrust. , it will not turn. The result is a star that does not revolve around the planet.
The molecular cloud is not observed, but it has angular thrust. Maintaining this force means that this cloud spins faster when it collapses; As some of this gas collapses in the solar disk, a ring of material acts as an incubator for the planets that spin spontaneously.
For example, if we look at the Earth from above the ecliptic (an imaginary plane corresponding to the solar disk of the solar system); The Earth will rotate counterclockwise, which is the same direction as the Sun’s rotation.
Venus rotates clockwise and counterclockwise, eventually Venus will be in the orbit of the Sun, like the Moon in the orbit of the Earth. This means that the orbital period is equal to its rotation around itself.
Eventually, Venus will meet the Sun at any time and the planet’s day will be equal to its year; Because the direction of rotation and the orbit are different; The planet Venus will do almost no rotation around the fixed stars.
The sun will appear to be moving across the sky when looking from the surface of a non-rotating planet and the other stars will be stationary, however, Venus is still rotating a bit with a period of around 235 million years, as our system solar revolves around the center of the Milky Way at this time, and by interactions and collisions with other bodies. In our solar system some planets have been affected and have lost their rotation.
“The planets come in the form of dust particles which are attracted to each other by static electricity, and once they have sufficient mass they will attract other masses, and when the particles come in. collision with growing asteroids, they can collide with their center of gravity, and then the force of the particles is transformed into an angular thrust which contributes to the mass of the planet, ”said John Hockday.
He added: “All particles, pebbles, rock asteroids and comets provide more angular thrust and contribute to the growth of the planet, and it is difficult for the debris to collide with the asteroid directly at the center of gravity. ; So all the planets will rotate.
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Translation: Amr Ahad Hamdan
Editing: Glory to Ali
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