sun

                              Sun 

The Sun, or Sol, is the star at the center of the Solar System. It is a nearly perfect sphere of hot plasma, with internal convective motion that generates a magnetic field via a dynamo process. It is by far the most important source of energy for life on Earth.

                             

                                                  

What is  sun  made up of ? 

                                                           The Sun is a huge, glowing sphere of hot gas. Most of this gas is hydrogen (about 70%) and helium (about 28%). Carbon, nitrogen and oxygen make up 1.5% and the other 0.5% is made up of small amounts of many other elements such as neon, iron, silicon, magnesium and sulfur.

 

               

Internal structure of sun : 

                                          

The sun has an interior consisting of the core, radiative zone, and convective zone. It has a visible surface called the photosphere, then the chromosphere, which usually isn't visible, and the very outer layer called the corona.