Sol's Core

As mankind's knowledge of Science has progressed, the ideas about the composition of the Sun have changed. At one time, the Sun was thought to be made of wood. When coal was discovered, it was supposed that the Sun was made of coal. The discovery of fusion led Scientists to theorize that the Sun was composed of Hydrogen and Helium.

We are only able to observe the outer layers of the Sun. Effectively we see the Sun's equivalent of the Earth's Crust. We guess at everything beneath.

The Core
The Earth's Core came from the Sun. The Sun was once a naked sphere of high energy. The Sun emitted and ejected material into the surrounding space. Some of the material could not escape the Sun's gravity and fell back onto it's surface. Matter touching the core of the Sun is exposed to tremendous energy. It reacts like water on the surface of well oiled frying pan. Fusion happens in the outer core as atoms collide.

Note that fusion happens in the outer core, not the inner core. There is no Radiative or Convective zone, but an Outer Core where fusion occurs. The Photosphere results from the contact of the Outer Core with Space. What we see happening in the Photosphere and Chromosphere is the surface violence. Beneath the surface Hydrogen is formed and destroyed. Atoms are fused and destroyed. Few of the heavier elements have enough energy to reach the surface.

The Planets
Before the Outer Core formed, the Sun's Core ejected large amounts of material into what became the Solar System. The larger more stable units became planet cores.