SOLAR SYSTEM

Detailed explanation-1: -Our Sun is one of at least 100 billion stars in the Milky Way, a spiral galaxy about 100, 000 light-years across. The stars are arranged in a pinwheel pattern with four major arms, and we live in one of them, about two-thirds of the way outward from the center.

Detailed explanation-2: -Our Galaxy Our Sun lies near a small, partial arm called the Orion Arm, or Orion Spur, located between the Sagittarius and Perseus arms.

Detailed explanation-3: -We live in one of the arms of a large spiral galaxy called the Milky Way. The Sun and its planets (including Earth) lie in this quiet part of the galaxy, about half way out from the centre. 100 000 years to cross from one side to the other.

Detailed explanation-4: -Stars are not scattered randomly through space, they are gathered together into vast groups known as galaxies. The Sun belongs to a galaxy called the Milky Way. Astronomers estimate there are about 100 thousand million stars in the Milky Way alone. Outside that, there are millions upon millions of other galaxies also!

Detailed explanation-5: -Our best estimates tell us that the Milky Way is made up of approximately 100 billion stars. These stars form a large disk whose diameter is about 100, 000 light years. Our Solar System is about 25, 000 light years away from the center of our galaxy – we live in the suburbs of our galaxy.