What is the difference of size between the earth and Saturn?

Answer 1

The only problem here is that a planet's gravitational field depends on how far

you are from its center. On Earth, that's easy to define, because the Earth has

a solid surface. That's where most of us spend most of our time, and so we

understand the acceleration of Earth's gravity to be the number we measure

when we're on the solid surface.

Saturn is a 'gas giant' and has no solid surface. So where should we stand in

order to compare its 'gravity' to Earth's ?

What the planetary scientists do, in order to talk about the 'size' and 'gravity'

of the gas giant planets, is: They consider dangling a barometer down into

the gas, from the wispiest thinnest gas out in space near the planet, down

and down as it get thicker and heavier. And when the barometer gets down

to the depth where the pressure of the gas is the same as the sea-level pressure

of Earth's atmosphere, they call that the 'surface', for purposes of talking about

the planet's 'size' and gravitational acceleration.

When you do that for Saturn, you find that its diameter is 9.44 times as long as Earth's diameter.

The acceleration of gravity at that depth in Saturn's 'atmosphere' has been

measured as 10.58 meters/second2 . . . about 8% greaterthan on Earth.

Answer 2

Well, you see....the difference of size between the Earth and Saturn is that when it's compared to each other, Earth is like the size of a marble next to Saturn. :3

Answer 3

Saturn is much larger than Earth. Saturn has a diameter about 9 times greater than Earth's and is over 95 times more massive.