The gravitational pull from the sun plus its own pull away from the sun
The planets move in an act of gravity.
a planet DA
That planet will move faster in its orbit.
The Sun doesn't move fast, but if you mean which planet moves fast around the sun then it would be Mercury, because it is closer.
Distance from the Sun. (The closer it is, the faster it moves.)
Jupiter
a planet DA
A planet orbits a sun, a moon orbits a planet
Sedna.
That planet will move faster in its orbit.
it moves around the sun
Each planet moves in a different orbit, at a different average distance from the sun, and at a different speed.
The Sun doesn't move fast, but if you mean which planet moves fast around the sun then it would be Mercury, because it is closer.
Mercury.
Earth.
A satellite
A planet's orbital speed changes, depending on how far it is from the Sun. The closer a planet is to the Sun, the stronger the Sun's gravitational pull on it, and the faster the planet moves. The farther it is from the Sun, the weaker the Sun's gravitational pull, and the slower it moves in its orbit.
There is no planet that moves upside down, as there is no real "up or "down" in space. However Uranus is tilted nearly all the way to the side on its axis.