As a star ages what happens to its composition?

Answer 1

A star's internal composition does not change as the star ages, as a result of rising temperatures. The life span of a star is from one to ten-billion years. Larger, more massive stars have a shorter lifespan than smaller ones, due to the pressure on the core causing the larger stars to burn hydrogen more quickly.

Answer 2

As a star ages, it fuses lighter elements like hydrogen and helium into heavier elements through nuclear fusion in its core. This process changes the star's composition, enriching it with elements like carbon, oxygen, and eventually even heavier elements up to iron. At the end of its life cycle, a star may experience a supernova explosion, dispersing these newly created elements back into space.

Answer 3

It changes. (Hydrogen to helium to carbon to oxygen to neon to magnesium...) Our sun will never become hot enough to turn hydrogen and helium into carbon, however. Larger stars will can.

Answer 4

It will gradually convert hydrogen-1 to helium-4, so it will have less hydrogen and more helium. At a later stage, the star will convert helium-4 to heavier elements.