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submitted 8 months ago by GardenVarietyAnxiety@lemmy.world to c/askphysics@lemmy.world

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Is it possible to determine the percentage of the gravitational force at a specified distance using only the geometry of the planet?

Example: The ISS at ~420km altitude "weighs" about 90% of what it would on the Earth's surface.

Is there an equation using only geometrical values that would give you this info?

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[–] GardenVarietyAnxiety@lemmy.world 2 points 8 months ago

That was a lot simpler than I thought. Thanks!

What do you mean by "geometry of the planet"?

I just meant measurements such as radius.