Page:Illustrated Astronomy.pdf/26

 THE SUN STRUCTURE, OR WHAT IS IT BETWEEN THE SUN’S CORE AND WHAT WE SEE?

The star has six main layers:

THE CORE

Where its energy is produced. It is the innermost part and is up to 20 % or 25 % of its total radius, which means if the Sun has a radius of 700,000 km, the core from the center goes between 150 and 200,000 km. In this place, a significant quantity of helium builds up at every moment.