The system consysting of Sun and other objects(planets, moons, asteroids and comets etc) rotating around sun because of it’s gravitational pull is called as “Solar System”. The Sun is the only star and at the center of the Solar System. The largest eaight bodies which rotate around the Sun directly are called as planets of the sun. The moons are those which rotate around a planet and so indirectly rotate around the Sun. There are two moons bigger than the smallest planet mercury. The galaxy of which the Solar System is part of is called ‘The Milky Way’.The Solar System is beleived to be formed 4.57 billion years ago.