Our sun is a star. It is made of gases called hydrogen and helium. The outside of the sun is 11,000 degrees Fahrenheit. The sun spins around without moving out of its spot.
Scientists pretend that planets and stars have a line drawn through their middles.
This line is called an axis. Our sun spins on its axis, just as all of the planets spin on theirs. An axis is not a real line. It is imaginary, and it helps us understand how each planet and star spins. The sun is very, very big.