What is the difference between inner and outer planets? - ProProfs Discuss
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What is the difference between inner and outer planets?

Asked by R. Barnes, Last updated: Jul 15, 2019

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F. Daniel

I work for a California based MNC.

F. DanielContent Optimization Executive, Diploma in Journalism, California
Content Optimization Executive, Diploma in Journalism, California

Answered on Jul 15, 2019

The solar system comprises of the sun, planets, and some other objects orbiting around the sun. The planet is categorized into two; we have inner planets and outer planets. Out of eight planets orbiting the sun, four are known as inner planets because they are very close to the sun, i.e., Mercury, Venus, Earth, and Mars. The other four are known as the outer planets because they are very far from the sun, i.e., Jupiter, Saturn, Uranus, and Neptune.

Another difference is that inner planets are also known as solid planets because they are made up of rock and as a result, they are cumbersome compared to outer planets. On the other hand, outer planets are made up of gases, and they are lighter planets, which means they move very faster than inner planets. Due to the closeness between the sun and the inner planets, inner planets are usually warm, but outer planets are often cold because they are very far from the sun.

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