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In short, Neptune's gravity affects Earth far less than Mercury.
In Depth:
The effects of gravity depend on two factors: the mass of the object, and the distance to the object.
Assuming your question is limited to the planets within out own solar system, the answer would be a contest between Neptune (the farthest away) and Mercury (the least massive).
According to NASA websites, Neptune is approximately 309 times more massive than Mercury.
Determining distances is a much more complex problem, since both planets and Earth are in an elliptical orbit in which they vary their distance from the sun. In addition, they don't spend equal amounts of time at all distances.
Using the numbers given by other WikiAnswer questions, Neptune is an average of 30 AUs from Earth and Mercury is an average of 0.6 AUs from Earth. Which means Neptune is an average of 50 times more distant from Earth than Mercury.
Because of the inverse square law of gravity, Neptune affects Earth 2500 (502) times less than Mercury, which is far greater of a reduction than it's greater mass compared to Mercury.
In short, Neptune's gravity affects Earth far less than Mercury.
What else can I help you with?
Is there a net force acting on the planet earth?
Yes, the planet Earth experiences a net gravitational force towards the Sun, which keeps it in orbit. Additionally, Earth's rotation causes a centrifugal force that counteracts some of the gravitational force.
How does Earth move around the sun?
Earth and other planets revolve sun by gravitational force.As Newton said gravitational force is directly proportional to product of 2 masses. It is weekest force amoung nature but it is appreciable in the case of massive bodies. The gravitational force betweem the sun and Earth is of order of 10^27 N. By Neton if mass is greater gforce is greater. thats why in our solar system greater mass planet revolve around the sun.
Is Earth the only planet that has a gravitational force?
NO. They all have gravity.
What is the gravitational force of the planet pulling on the sun causes?
The gravitational force from a planet on the sun is so small. For example, 1,000,000 Earths can fit in the sun. The mass of the sun is 333,000 times bigger than the Earth. It is the same way you on Earth. You have a gravitational force on the Earth but it is so small.
What is also called a gravitational force?
Its a force between two bodies. As Newton said gravitational force is directly proportional to product of 2 masses. It is weekest force amoung nature but it is appreciable in the case of massive bodies. The gravitational force betweem the sun and Earth is of order of 10^27 N. By Neton if mass is greater gforce is greater. thats why in our solar system greater mass planet revolve around the sun./
What is earth's gravitational force compared with Uranus?
Earth's gravitational force is stronger than Uranus due to Earth's larger mass and size. Uranus has a weaker gravitational force because it is a gas planet with lower density than Earth.
Which planet would have the greatest gravitational force?
The planet that has the greatest gravitational force is Jupiter.
How does gravitational force acting on the planet compare to the gravitational force acting on the moon due to the planet?
The gravitational force acting on the planet is much greater than the gravitational force acting on the moon due to the planet. This is because the planet has a significantly larger mass than the moon, resulting in a stronger gravitational pull on the moon towards the planet.
On planet earth there is no centrifugal force at the?
At the center of the Earth, the centrifugal force is zero because all mass is evenly distributed around that point, resulting in a gravitational force that is balanced. As you move away from the center, both gravitational and centrifugal forces increase. At the surface of the Earth, the centrifugal force is present due to the rotation of the planet.
What holds earth's atmosphere together?
the gravitational force holds its atmosphere together
What planet has the greater amount of gravitational force mercury or earth?
it's almost the same ... but earth's is a little bit more
What is the force of gravity on Saturn compared to the Earth's gravitational force?
The force of gravity on Saturn is weaker than on Earth. Gravity is determined by both the mass of the planet and the distance from its center, and Saturn has a lower mass and larger radius compared to Earth, resulting in weaker gravitational force on its surface.
