no, then inner solid planets are more dense than the outer gas planets
Gravity from the Sun holds the planets in their orbits.
No, not all planets have elliptical orbits. While most planets in our solar system have nearly circular orbits, some planets, like Mercury and Pluto, have more elliptical orbits. Additionally, exoplanets outside our solar system can have a variety of orbital shapes.
there 9 planets one is moved
The gravity of the Sun keeps the planets in their orbits. They stay in their orbits because there is no other force in the Solar System which can stop them.
None of the planets pass out of our solar system. The orbits of the planets, irregular as they may be IS the solar system.
All planets in our solar system have elliptical orbits.
It doesn't. All of the planets in our solar system orbits the sun.
Yes, none of the planets in our solar system have exactly circular orbits, though some are more eccentric than others.
The planets and other objects in the solar system stay in their orbits due to the mutual gravitational attraction between each orbiting object and the Sun.
Dwarf planets are smaller than regular planets. Dwarf planets are smaller than the 8 major planets of our solar system. They are not quite planets as they have not cleared their orbit of sufficient matter. They are roughly spherical in shape and orbit the sun directly, so fulfil these two criteria, but have not achieved the third (sufficiently clearing their orbits).
The orbits of all planets in our solar system do not overlap; each planet has its own distinct orbit around the Sun. However, there are times when planets appear close together in the sky from our viewpoint on Earth due to their positions in their respective orbits.
Planets orbit the Sun in ellipses, while moons orbit planets in ellipses or circles. Planets have relatively stable orbits defined by their distance from the Sun, while moons have more variable orbits influenced by gravitational interactions with their parent planet and other moons. The orbits of planets and moons in the solar system are in the same plane called the ecliptic, with some exceptions like Pluto and its moon Charon.