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.
Curiously, the nearer the planet is to the Sun the faster it orbits. Thus Mercury orbits the fastest, whereas Neptune is the slowest.
MERCURY
The farther a planet is from the sun, the slower it moves in its orbit. So the planet with the largest orbit is the slowest. That's Pluto ... if you still consider Pluto a planet ... or Neptune if you don't.
That planet will move faster in its orbit.
Distance from the Sun. (The closer it is, the faster it moves.)
The earth is moving fastest in its orbit at the moment of perihelion, when it is closest to the sun. the happens around January 3.
The fastest planet is Mercury which is closest to the Sun.
mercury is the fastest
Mercury moves the fastest 48 km/s
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.
Curiously, the nearer the planet is to the Sun the faster it orbits. Thus Mercury orbits the fastest, whereas Neptune is the slowest.
MERCURY
mercury
dwarf planet pluto
it moves around the sun
Mercury is the closest planet to the sun. Because of this, it revolves around the sun the fastest.
Because the sun moves around so when the sun moves around the light from the sun touches the planets