Why does Jupiter orbit faster than Neptune?

Answer 1

The simplest and most accurate answer to the question is: Because that's how

gravity works.

The way gravity works, an object in a smaller orbit always moves faster than an

object in a larger orbit around the same central body. "Faster" in this context means miles per hour or other, similar measures of velocity (linera distance per unit time).

So the object in the larger orbit takes a double hit: It has farther to go, PLUS

it moves slower, so it's definitely going to take a lot more time for each orbit.

Here's a real-world, everyday example that's right in front our face and so

obvious that we don't even notice it:

-- International Space Station, about 240 miles up, takes 91 minutes per orbit.

-- That's about 570 miles per minute.

-- Geostationary TV satellite, about 22,000 miles up, takes 24 hours per orbit.

-- That's about 113 miles per minute.

-- Moon, about 240,000 miles up, takes 27.32 days per orbit.

-- That's about 39 miles per minute !

And also by the way, none of this has anything to do with the size or the

mass of the orbiting body. Makes no difference. Only the size of the orbit.

That's why an astronaut on a 'space-walk' was able to float gently away from

the Space Shuttle, and then float gently back to it. While they were separated,

the Shuttle and the astronaut moved at the same speed and stayed in the same

Earth orbit, even though the Shuttle was somewhat larger and had a little more

This phenomenon is called "Kepler's Law of Periods". Look that phrase up to find out more about it.

Answer 2

Because Jupiter is closer to the Sun than Neptune.

Answer 3

Yes, every inner planet has fast movement as compare to farther.