Category : 2nd Class
All heavenly bodies like sun, moon, earth comes in our universe.
Our Solar System
Our solar system consists of sun, eight planets and their satellites. Sun is at the centre of the solar system and all the eight planets revolve around the sun.
The planets which revolve closer to the sun are inner planets. These are: Mercury, Venus, Earth and Mars-
Jupiter, Saturn, Uranus and Neptune are outer planets of the solar system.
Our earth has one moon which revolves around the earth. The Moon of earth is also called its natural satellite. The moon does not have its own light.
Rotation of Earth
Movement of earth on its own axis is called rotation of the earth. Earth takes 24 hours to complete one rotation.
Revolution of Earth
Movement of earth around the sun is called revolution of the earth. Earth takes 365 1/4 days to complete one revolution around the sun.
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