what is sunlight made of
Most of the gas â about 72 percent â is hydrogen. Nuclear fusion converts hydrogen into other elements. The sun is also composed of about 26 percent helium and trace amounts of other elements â oxygen, carbon, neon, nitrogen, magnesium, iron and silicon.These elements are created in the sun's core, which makes up 25 percent of the sun.Gravitational forces create tremendous pressure and temperatures in the core.The temperature of the sun in this layer is about 27 million degrees F (15 million degrees C).hese elements are created in the sun's core, which makes up 25 percent of the sun. Gravitational forces create tremendous pressure and temperatures in the core. The temperature of the sun in this layer is about 27 million degrees F (15 million degrees C).