There are eight planets that go around the sun.
If you mean which planet orbits the Sun the quickest it's the planet Mercury. Mercury is the closest planet to the Sun and the closer an object is to the Sun the faster it must go around to avoid falling into the Sun.
Yes, the farther a planet is from the Sun, the longer it takes to go around the Sun.
mercury
none the orbit is around the sun
Mercury is the smallest planet to go around the sun.
It means that the planets go around the sun.
Nicolaus copenicus
Nicolaus Copernicus
When a planet is closer to the Sun, its orbit around the Sun is shorter because it has a smaller distance to travel in completing one orbit. The time it takes for a planet to go around the Sun is determined by its distance and speed.
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A planet year is defined as the time it takes a planet to make one complete revolution in its orbit around the sun. The farther away from the sun a planet is, the larger its orbit. The larger its orbit, the longer (more days) it takes to go around the sun. Thus, the farther away a planet is from the sun, the longer its year will be.