The Sun

Our home star also known as the Sun, provides our planet with warmth. It is composed of 78% hydrogen and 28% helium, with the remaining two percent being light metals. It is a main sequence, yellow star. The Sun has layers like the Earth. They are, the core, the radiatice zone, the convective zone, the photosphere, the chromosphere, the transition region, and the corona. The Sun's energy comes from nuclear fusion that occurs in the core, caused by it's own immense gravity. At its core, the sun burns at 15 million degrees Celcius (27 million °F). On average, the sun is 93 million miles from Earth, this measurment is also called an Astronomical Unit (AU). Throughout history the Sun has been a source of myths and legends and has had a multitude of names such as Helios and Sol.