It is made of gases called hydrogen and helium. It is always burning and is very hot. The outside of the sun is 11,000 degrees Fahrenheit. All of the planets in our solar system orbit, or revolve, around the sun. The sun spins around, too.
Scientists pretend that planets and stars have a line drawn through their middles.
This line is called an axis. Our sun spins around its axis just like each planet does. The sun is very, very big. Our planet seems very big to us. Our sun is called a yellow dwarf star.