The size of the planet along with the gravitational force within the planet.
Planets orbit the sun in the shape of an ellipse, which is an elongated circle similar to an oval. When it was first discovered that the Sun is the center of the solar system, it was thought that all the planets had a circular orbit, but the calculations didn't fit.
the closer you are to the sun it affects the planets speed cause of the suns gravitational pull
No. Planets orbit suns, while moons orbit planets. Planets do not orbit planets.
Planets orbit the sun because gravity keeps them from escaping, and momentum keeps them moving forward. The orbits are elliptical, which is like an oval.
The Sun does not orbit the planets. The planets orbit the Sun. The Sun is stationary with relation to the planets' motion. The Sun does, however, orbit the Milky Way galaxy, as do the planets and everything else in the galaxy.
Elliptical Orbit
An ellipse.
Ellipse.
Planets orbit in an ellipse.
Ellipses
Mars, and all the other planets, have oval-shaped, or eliptical, orbits.
As with all the planets, the orbit of Neptune is a nearly circular ellipse.
Planets orbit the sun in the shape of an ellipse, which is an elongated circle similar to an oval. When it was first discovered that the Sun is the center of the solar system, it was thought that all the planets had a circular orbit, but the calculations didn't fit.
An ellipse.
Planets follow an eclipse shape when orbiting around the sun. Pluto had an irregular orbit and is no refereed to as a moon.
the closer you are to the sun it affects the planets speed cause of the suns gravitational pull
All of the planets in our solar system have an elliptical orbit around the sun.