How many times stronger is sun's gravity compared to earth's gravity?

Answer 1

According to some sources Saturn's "surface gravity" is stronger than the Earth. Some say it is about 1.15 times that of Earth.

Others say it's about 1.065 times that of Earth.

Still others say it is only about 0.92 times that of Earth.

So it's hard to say if it is stronger or weaker than Earth's. A lot depends on exactly how the surface gravity of Saturn is defined.

Answer 2

Short Answers:

In comparing gravity, there are two questions and maybe three answers.

1. Comparing the gravitation force exerted by a planet on a mass at a fixed distance from the planet, the more massive planet exerts the greater gravitational force.

2. If we say the "gravity" is the gravitation force at the surface of the planet, then one compares both the mass of the planet and the radius of the planet to get the gravitational acceleration at the surface.

Answer 1.

Saturn has 95 times the mass of Earth and hence exerts 95 times the force on an object placed the same distance from its center.

Answer 2.

Gravity on Saturn is more or less the same as gravity on Earth. In this case, if someone says it is more and someone else says it is less, they are both correct.

According to NASA (see related links) Earth has an acceleration of gravity of 9.80665 m/s2 and Saturn has 10.44 m/s2 which is 1.065 g.

The complications:

Considering that Saturn is 95 times the mass of Earth, it may be surprising that the Equatorial surface gravity of Saturn is almost the same as Earth.

Of course, this is because gravity increases with mass and decreases with distance and the radius of Saturn is almost ten times the radius of Earth, so the two effects almost balance out.

There is a caveat.

There is no "surface" on Saturn that we can identify since it is a giant gas planet. So, to define the "surface" of Saturn and other gas planets it is convention that the surface is taken to be the place where the pressure reaches one atmosphere, the same as Earth. Since the gas planets bulge because they are rotating, they are fatter around the equator and so the "surface" at the equator is further from the center than the surface at the poles. Hence, the gravity at equator is less than at the poles. This causes gravity to change by 10% or so. In fact, it is easy to find answers to the question of the gravity on Saturn that are both 10% higher and 10% lower than Earth's gravity because of the issue of where you place the surface. We aren't even going to begin to discuss the fact that the planets rotate and have a centrifugal force as well.

Answer 3

Saturn has a stronger gravity than Earth because the diameter of the planet Saturn is larger than the diameter of the planet Earth. This implies that Saturn has a greater mass than the planet Earth and from Newton's law of gravity, a larger mass planet has a greater gravitational pull. Therefore, Saturn has a greater gravity than Earth.

Edit: Yes, Saturn does have a greater mass than the Earth. However we usually mean "surface gravity" when we talk about the "gravity" of a planet.

Because it has a big diameter you would be further from the centre of mass

than on the Earth. This roughly cancels out Saturn's greater mass and so

Saturn's surface gravity is only slightly greater than Earth's (according to most

sources of reference).

Answer 4

Saturn is more massive therefore its gravity is stronger when measured at a standard distance, like a million kilometres from each planet. This allows Saturn to retain its rings systems and its many moons.

Answer 5

The Sun's gravity is approximately 28 times stronger than Earth's gravity. This means that an object would weigh about 28 times more on the surface of the Sun compared to on the surface of the Earth.

Answer 6

It's gravity is about 1.06 times the earth of gravity. if you weighed 100 pounds on earth you would weigh 106 on saturn.

Answer 7

not much stronger at all. if you weigh 100 pounds on earth, you will weigh 106.4 pounds on saturn.

Answer 8

On Earth, gravity at the equator is 0.99732 g

On Saturn, again at the equator, it is slightly less, at 0/914 g

Answer 9

suns gravity is about 28 times stronger compared to earth's gravity

Answer 10

"Yes and no". It depends on the exact definition. The surface gravity of both planets is similar.