Life cycle of a star

Before star is born: Interstellar meduim

Intersteller medium is the matter that exsist in the space beetween the star systems in galaxy. It is made up of ionic,atomic and molecular form.

First stage of a star: Protostar

Protostar is a large mass that forms by contraction out of the gas of a giant molecular cloud in the interstellar meduim.

Equilibrium is established

Equilibrium is the state in which oposing forces of influences are balanced. The inward pull of gravity and the outward push of gravity is caused by internal gas pressure.