The sun as star

The sun as star

The sun as star 

Basically, the sun is one of the stars are in the solar system and the center. Sun includes a star because it can generate its own light energy. The sunlight than another star was brighter. That is why during the day we can not see a star other than the sun. 

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. 

In addition to the distribution center, the sun is also a central source of energy in the solar system. The sun consists of a core and three layers of skin, each photosphere, chromosphere and corona. To continue to shine, the sun, which consists of hot gas hydrogen exchange substances with substances helium through nuclear fusion reactions at levels of 600 million tonnes, with it losing four million tons of mass every time. 

Believed the sun formed 4.6 billion years ago. Density is 1.41 solar masses versus mass of water. The amount of solar energy reaching the Earth's surface that are recognized as the solar constant equaling 1370 watts per square meter at any time. The sun as the center of the Solar System is the second generation of stars. Material from the sun formed from the explosion of the first generation of stars as believed by scientists, that the universe was created by a big bang explosion about 14,000 million years ago.