Nebula That it is a newborn. And it is a low mass star. Protostar It is the next youngest beside the nebula. The protostar thas the low mass of star. Main Sequence this is a high mass main squence star. this is a low mass star Red Giant This is the last stage of the stellar evolution. it is a high mass star. Planetary Nebula This is the next stage after the red giant. this is a high mass star. White Dwarf This star is young. and it is a high mass star. Black Dwarf this is a grown star. it is high mass. Red Supergiant this is a a star that is almost about to explode. It is High mass. Supenova this is a little version of a black hole. it is a high mass Neutron Star this is a low mass star. it is close to a white dwarf Black Hole this is the final stage in the star life. it is high mass.