As the central body of the system, the Sun represents the largest formation of this group of tel. Its diameter is 109 times that of the Earth and its volume is 1.3 million times that of its diameter and volume. What is the sun? It is a star like the many billions of other stars we see in the sky. Like them, the Sun is made up of hot gases. The light emanating from this sphere of gas and the heat associated with it are a necessary condition for life on Earth. Any heat and natural or artificially produced energy on our planet ultimately originates from the Sun...