What Determines the Gravity of Planets?

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The gravity of planets is determined by observing the orbits of their satellites. By measuring these orbits, scientists can calculate the gravitational pull of the planets. The relationship between gravity and orbital mechanics is crucial for understanding planetary motion. Resources such as the Wolfram ScienceWorld provide detailed information on gravity. Accurate measurements of orbits enable precise calculations of a planet's gravitational force.
chetan
How do we find out the gravity of planets
 
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By observing the orbits of their satellites.
 
Originally posted by chetan
How do we find out the gravity of planets
About all you could want about gravity can be found at:

http://scienceworld.wolfram.com/physics/topics/Gravity.html

For planets, go to the center column about 2/3 of the way down, and click on the single-word "Gravity".

Labbie
 
Gravity dictates the orbits of the planets around the sun (and as Janus said, the moons around the planets). By measuring those orbits, you can calculate the planet's gravity. See the link I provided in the other topic you started.
 

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