Sun

===The sun is center star of the Universe. It contains hot plasma and is almost perfectly a sphere. The diameter of the sun is 1,392,000 Km. It’s mass is 2x1030 Kg, which is 99.86% of the mass of the Solar System. Three quarters of the sun is made up of Hydrogen, and the rest is Helium. From the Earth, the sun is 8 minutes and 19 seconds light years away. The center temperature of the sun is 1.57x107 K.===