Stellar Structure

Stellar structure refers to the internal composition and layers of a star, determined by the balance between gravity and energy produced by nuclear fusion. The core is where fusion occurs, generating heat and light. Surrounding layers include the radiative zone, where energy moves outward through radiation, and the convective zone, where energy is transferred by movement of plasma. These layers work together to keep the star stable. Understanding stellar structure helps explain a star’s lifespan, brightness, and evolution, giving insight into how stars like our Sun form, shine, and ultimately change over time.