what is stage 1
interstellar cloud
how is starts?
cloud of gas and dust
stage 1
stellar nebula
first stage
helium fuel runs out
first stage?
stellar nebula
what is stage 2
collapsing cloud fragmentation
what is the cloud of gas and dust called?
nebula
stage 2
average star
second stage ?
the core cools
second stage ?
massive star
what is stage 3 ?
fragmentation ceases
next step after that ?
the nebula shrink
stage 3
red giant
third stage ?
the upper layers will expand and eject matrial
third stage?
red supergiant
what is stage 4 ?
protostar
step 3 of the birth is ?
then it divided into a smaller swirling clumps.
stage 4
planetary nebula
fourth stage ?
the dying star forms a planetary nebula
fourth stage ?
supernova
what is stage 5 ?
protostellar evolution
last step is ?
the clumps becomes ball-shaped and shirnk more and gets hotter and hotter
stage 5
white dwarf
last stage?
the core cools into a white dwarf then into a black dwarf.
last stage ?
black hole