The sun as star
The sun is the closest star to Earth with an average distance of 149,680,000 kilometers (93,026,724 miles). The sun and the eight planets (the known / discovered by humans) to form the Solar System. The sun is classified as a small star type G.
The sun is a ball of incandescent gas and it did not really round. The sun has the equator and the poles due to the rotational motion. Ekuatorialnya midline 864,000 miles, while its polar diameter between 43 mile shorter. Sun is a member of the solar system, because 98% of the mass of the Solar System collects the sun.