Stellar Nebula

A Stellar Nebula is the beginning of a stars life cycle. The Stellar nebula is a giant cloud made up of gas and dust. When gravity pulls the gas and the dust that are in the nebula together it makes a Protostar.

Protostar

A Protostar is the earliest stage to a stars life. The Protostar can be a low-mass, medium-mass, or a high-mass protostar. A Protostar is a contacting mass of gas before neucleotheses begins. When a Protostar is Turned on it becomes a Main Sequence star.

Main Sequence Star

A Main Sequence Star is any star that is fusing hydrogen in its core and that it stable. Our Sun is a Main Sequence Star. When a Main Sequence Star begins to run out of hydrogen it becomes a Red Giant or a Red Supergiant.

Red Giant and Red Supergiant

A red Giant comes from a low or medium mass star. A Red Supergiant comes from a High mass star. both stages are last stages of stellar evolution when a Red Giant then explodes into a PLanetary nebula and a RedSupergiant explodes into a supernova.

Red Giant Red Supergiant

Planetary Nebula

Planetary Nebualas are remains of a Red Giant. A Planetary Nebula is like a Stellar Nebula, but a Planetary Nebula is more like a cloud of dust around a dying star. When a Planetary Nebula begins to cool of off it becomes a White Dwarf.