The solar system includes nine planets and sun being at the centre. All the planets revolve around the sun .The solar system also includes the asteroids, meteors and numerous comets. All of these travel around the sun in a particular orbit
The planets which are the significant part of the solar
system namely,Mercury,venus,earth,mars,Jupiter,Saturn<ur anus,neptune and the Pluto.
All the theories about the formation of the solar system agree on two facts. One is that the age of solar system is 4.5billion years and secondly the planets were formed from the gas and dust within the vicinity of the sun. The gas and dust condensed into tiny bodies which eventually built up the present day planetary system.
MOTION OF THE PLANETS
The planets perform two types of motions.
1. rotation at their axis is
2. revolution or the orbital motion along their orbits around the sun.
THE AGE OF THE SOLAR SYSTEM
Meteoric evidence suggests that the solar system is 4530+20 million years old. And that was formed in less than 25 million years. The solar system is believed to be formed from a globe of gas and dust that consisted mainly of hydrogen
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