Question

Click on the mass icon.
Select 40 in the bottom left corner.
Change the speed to normal.
Press play and then observe/watch the different stages the star goes through throughout its life.
Question: When the mass of the star is 40x the sun, select all the stages that this star goes through.

(5 points)
Responses

main sequence
main sequence

neutron star
neutron star

blue giant
blue giant

black hole
black hole

red giant
red giant

white dwarf

Answer 1

For a star with a mass of 40 times that of the Sun, the stages it goes through are generally as follows:

1. **Main Sequence** - Yes, this is the initial stage.
2. **Blue Giant** - Yes, it will become a blue giant as it exhausts hydrogen in its core.
3. **Red Giant** - Yes, the star will expand into a red giant stage after exhausting helium and other fuels.
4. **Neutron Star** - Not typical for a star of this mass; it usually does not become a neutron star.
5. **Black Hole** - Yes, a star of this mass will likely end its life as a black hole.
6. **White Dwarf** - No, it will not evolve into a white dwarf as stars of this mass generally end their lifetimes in a more dramatic fashion.

So the correct stages are:

- Main Sequence
- Blue Giant
- Red Giant
- Black Hole