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# How is the mass of Jupiter calculated?

The mass of Jupiter is estimated using a mathematical formula of Kepler's Third Law, which states gravity pulls the same on all planetary objects. A formula for calculating mass takes the distance of an orbit cubed divided by the period of the object's orbit squared, and then that figure is multiplied by the number of four times pi squared divided by Kepler's constant. Astronomers observe Jupiter's moons to calculate mass.

Continue ReadingThe formula reads "M=(a^3/P^2)*(4pi^2/G)," where M is the mass, "a" denotes the distance of an orbit, P is the period of an orbit, pi is 3.1459 and G is Kepler's constant. The period of an orbit is the time it takes a moon or planet to return to the same spot in the orbit every revolution. Pi is the mathematical constant that describes the relationship between the diameter of a circle and its circumference.

The mass of Jupiter is estimated to be 1.9 x 10^27 kilograms, or approximately 318 times the mass of Earth. The mass of Jupiter is 2.5 times greater than all of the other planets the solar system combined. Jupiter's mass can only be estimated, since the moons of Jupiter do not orbit the planet in a perfectly circular orbit as described by Kepler's Third Law.

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## Why is Jupiter denser than Saturn?

A: Saturn is much less dense than Jupiter because Saturn has much less mass than Jupiter, but it is only slightly smaller in terms of volume. In fact, Saturn ... Full Answer >Filed Under: -
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## What is the mass of Jupiter?

A: The mass of Jupiter is 1.898E27 kilograms. Jupiter is the largest planet in the solar system, and the mass of the planet is equal to 318 times the mass of ... Full Answer >Filed Under: -
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## How long does it take Jupiter to rotate once?

A: Jupiter completes one full rotation on its axis every 9.9 hours. It completes a full rotation faster than any other planet in the Solar System.... Full Answer >Filed Under: -
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## When was Jupiter discovered?

A: No one knows when Jupiter was discovered. The planet was known to the ancients and named after the chief god of the Romans. However, it's believed that the... Full Answer >Filed Under: