Do all stars and planets revolve in a particular orbit?
The number of stars and planets in the universe is more than trillions. Among them, many planets revolve around their respective stars, such as Earth and the other seven planets of the solar system, which revolve around a star like the Sun.
The Sun itself completes one revolution around the center of our Milky Way Galaxy every 230 million years. But there are billions of planets and celestial bodies in the universe that do not revolve around any sun or star. They are commonly known as Rogue Planets.
According to a conservative estimate, there are more than 50 billion rogue planets in our Milky Way galaxy alone that do not orbit a star but are stray or stray. While their number in the universe is in trillions. Many of them are Earth or planets several times larger than Earth. Finding them with ground or space telescopes is very difficult because they have no light of their own. However, we have found many such planets today through many astronomical observations.
Half of the stars in such a universe are not part of any galaxy but are wandering in the space between galaxies. They are called Rogue Stars. But these stars were formed in galaxies. Later it was ejected from its galaxy by the merger of two or more galaxies, or from a system of tw
o stars around a black hole. .
So it is not at all that all the stars or planets in the universe are moving in a particular orbit.