The asteroid belt is between mars and Jupiter and no planet holds it in position it's actually orbiting the sun it best imagined looking at Saturn with the planet being the sun and the moons the planets and the rings the asteroid belt it's all the planet.
Jupiter has the most gravity out of all the planets
Jupiter is the largest planet in our solar system, with a diameter of 142,984 and a mass of 1899x1024kg. Not only could Jupiter hold all the planets inside of it if it were hollow, but it would also fit all the moons inside of it as well (and there would still be room for more!).
If you could do the measurements at the same distance from both planets, you'd find that the gravitational forces between you and Jupiter would be about 318 times as strong as the forces between you and the Earth.
Planets would most likely drift until they were attracted to the next largest center of gravity, say Jupiter. But without a centre of gravity, the planets would have nothing to hold themselves in a fixed point and would simply drift.
Jupiter gases do not escape because Jupiter has enough gravity to hold the gases in place.
Planets which began in dense matter regions have greater mass, and are able to hold onto their large, deep atmospheres of light gases like hydrogen and helium. (Jupiter's diameter is mostly atmosphere, while Earth's atmosphere is relatively shallow at about 1% of its diameter.)
Jupiter
Jovian planets can also be called gas giants. They are Jupiter, Saturn, Neptune and Uranus. They are mostly made up of gas, but they have a rocky core, (somewhere!). They are said to lack a solid surface, But they actually don't really have a surface at all! The gases that they're made up from get thinner and thinner as you get closer to the core.
The outer planets are the planets that are made of gas. Each of the outer planets are mad of gas and can not hold life.
We only can live on Earth because Earth provides us with everything we need. Other planets such as Mercury or Jupiter cannot hold us. For example, Mercury or the other planets don't have water, or fertilized areas to plant vegetables and plants. Jupiter and the other gas giants such as Saturn and Neptune don't have a surface, so we would probably die. The most and final important thing is that the other planets don't have air.
Jupiter has been known since very ancient times, so how did Jupiter get its name? While it had many names throughout history, the Roman empire had the greatest influence over a wide portion of modern society, so the names accorded to planets by the Romans still hold sway over astronomy. The Romans named the planet after their king of gods, Jupiter, who was also the god of the sky and of thunder. Why choose to name the planet Jupiter? It was the largest object in the sky; therefore the most powerful; therefore Jupiter. i did research and copy and pasted it...
Yes it does