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Star Life Cycle

Astronomy!! ‧͙⁺˚*・༓☾

Life cycles of stars are based on their... Mass
All stars go through the same... 3 life cycle stages
Nebula Cloud of dust and gas held together by gravity; star nursery
Protostar Young star in early stages of formation; nuclear fusion begins
Main Sequence 90% of stars are in this stage of their life cycle
Red Giant The stage after main sequence for a small to medium mass star; fuel begins to run out
Planetary Nebula A ring-shaped nebula formed by an expanding shell of gas around an aging star
White Dwarf A star that has exhausted all of its nuclear fuel; planet sized and very dense
Black Dwarf A dead star that no longer gives off light or heat
Red Supergiant A star that is among the most massive and brightest of all stars
Supernova An extremely bright explosion of a star
Neutron Star The extremely dense remains of a dead star; very small and very dense
Black Hole A gravitational field so strong that not even light can escape
Protostar Happens after a Nebula, but before a Main Sequence.
Created by: gah
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