The Sun is the star at the center of the solar system. Planets, dwarf planets, asteroids and comets, but totally control of the Sun. The Sun is a star that is critical to provide energy to the plant world, such as in the form of light, and the light was changed to energy crops to freeze gas carbon dioxide into sugars as well as make the world has a variety of weather conditions conducive to life.
The Sun consists of hydrogen by mass, 74 percent are 25 percent helium by mass and other elements in small quantities. The Sun is G2V spectral in G2, which means that the Sun has a surface temperature of approximately 5780 Kelvin (5515 degrees Celsius or 9940 Fava rain hi) So the Sun is white, but yellow is seen on earth because of the spread of the light. The Sun produce energy by Fusion, hydrogen, helium, and is in a State of equilibrium is not expanded or collapsed.
The Sun is too far from the Centre as Milky Way Galaxy approximately 26000 light years distance. Take to orbit around the Galaxy is approximately 225 anniversary-250 million years. There are 215 km in orbit velocity per second or 1 year of light. Every 1400 year