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Use the formula to find the radius of a body from its gravitational acceleration and the gravitational constant (all bodies have gravity that is proportional to their mass).

See related links for a web page that will do the calculations for you.

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Q: How do you find the radius of a planet?
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Related questions

How do you find the volume of a planet?

To find the volume of a planet, you can use the formula for the volume of a sphere: V = 4/3 * π * r^3, where r is the radius of the planet. You would need to know the radius of the planet to calculate its volume.


Which planet has the largest radius?

Jupiter has the largest radius of any planet in our solar system.


Which Planet has the Largest equatorial radius?

Jupiter is that planet.


What is the mass of the planet with the largest radius?

The planet with the largest radius is Jupiter, and its mass is approximately 318 times that of Earth.


What is the radius of planet Jupiter?

Jupiter has an average radius of about 69,911 kilometers.


What planet has the longest radius?

Jupiter has the largest diameter (the radius is half the diameter, of course).


Planet mercury's size?

Its equatorial radius is 2439.7 kilometers. That is about 38% of Earth's equatorial radius.


What planet is the closest in size to the Moon?

Mercury is the closest planet in size to the Moon. Mercury is only slightly larger than the Moon, with a diameter that is about 38% larger.


If i wanted find out how big a planet is what word would i use?

In terms of the actual size of the planet, you would want to no its diameter. In some cases the size is given as the radius, which is simply half the diameter.


What is the radius of planet mars?

The average radius of Mars is about 3,389.5 kilometers.


What is the radius in kilometers of planet Jupiter?

70,158 km


Do objects on other planets weigh the same as they weigh on Earth?

No. Weight is the measure of how much force a planet pulls an object, that force is determined by the planet's mass and radius, and each planet has a different mass and radius.