How does a planet differ from a star?

Hint: The Solar System is a gravity-bound system which consists of the Sun, the planets and other objects which are bound to it directly or indirectly.

Complete Step by Step Answer:
A planet is an astronomical body orbiting a star in an orbit. It should have sufficient self-gravity assuming hydrostatic equilibrium and must have cleared the neighbourhood around its orbit.

-Planets have low temperatures and are not capable of producing their light.
-They do not have the twinkling effect, unlike stars.
-Planets change their positions constantly on their axis.
-Planets contain solids, liquids and gases.

A star is an astronomical object which consists of a luminous spheroid of plasma and is held together by its gravity. The Sun is the only star which is near to the Earth.

-Stars have high temperatures and are capable of producing their light.
-They have a unique twinkling effect. When the light from the stars travels through different layers of the atmosphere, it gets bent and disrupted, causing the star to twinkle.
- Stars do change their position but can be seen only after a long time.
-Stars consist of Hydrogen, Helium, and other light elements.

Note:Our Solar System has formed 4.6 billion years ago which is a result of the gravitational collapse. The main object of the Solar System is the Sun. The planets may seem gigantic but in reality, stars are gigantic when compared to planets.