life cycle of a star

life cycle of a star

step 1

step 1

fors from a nebular

step 2

force of gravity pulls he gas together to make a prtostar

still step 2

the temp rises and undergoes nuclear fusion

letting out a huge amount of energy keeping the star hot

step 4

hydrogen begins to run out and the star turns into a red gist or a super guiant depending on size

step 3

star enters a longe stable period

the star expands pulling everything inwards

step 5

a small star like our sun.

becomes unstable and elects its outer layer leaving a white dwarf

step 6

small star like our sun

a the dwarf cools it becomes a black dwarf

step 7

big star

expands and expodes into a supernova

step 8

big star

the expanding supernova throws out a layer of dust leaving a neutron star

step 8 still

if the star is big enough it leaves a black hole