stage 1-5
how is a star born?
what is the path of a white dwarf
what happens whn a star dies
phase of star that turns to a black hole
100

what is stage 1

interstellar cloud

100

how is starts?

cloud of gas and dust

100

stage 1

stellar nebula

100

first stage

helium fuel runs out

100

first stage?

stellar nebula

200

what is stage 2

collapsing cloud fragmentation

200

what is the cloud of gas and dust called?

nebula

200

stage 2

average star

200

second stage ?

the core cools

200

second stage ?

massive star

300

what is stage 3 ?

fragmentation ceases

300

next step after that ?

the nebula shrink

300

stage 3 

red giant

300

third stage ?

the upper layers will expand and eject matrial

300

third stage?

red supergiant

400

what is stage 4 ?

protostar

400

step 3 of the birth is ?

then it divided into a smaller swirling clumps.

400

stage 4

planetary nebula

400

fourth stage ?

the dying star forms a planetary nebula

400

fourth stage ?

supernova

500

what is stage 5 ?

protostellar evolution

500

last step is ?

the clumps becomes ball-shaped and shirnk more and gets hotter and hotter

500

stage 5

white dwarf

500

last stage?

the core cools into a white dwarf then into a black dwarf.

500

last stage ?

black hole