The Life Cyle of a Star
Storyboard Text
- Well, first the star is created due to goldilocks conditions. In less then a second, a star is born.
- Have you ever wondered about the life cycle of a star?
- This is a low mass star. During its main sequence, it is created of about > 98% hydrogen.
- This stage takes up about 90% of its lifecycle. Over time about 1/3 of the hydrogen is transformed into helium.
- During this stage, hydrogen in its core expands which forces the whole star to expand over 100 times in size.
- After the main sequence, the star becomes a red giant. This takes up about 10% of the stars cycle.
- The star has now turned into a planetary nebula. The core turns into a white dwarf while the outer gases are pushed out and away from the sun.
- Once the star has released most of its gases it turns into a white dwarf.
- The star is now made up of carbon and oxygen. It could also have some neon, magnesium, and helium.
- The black dwarf is a cooled version of the white dwarf.
- The universe hasn't been around long enough for any of these to exist yet.
- After that the stars return back into nebulae to eventually become apart of another star.
- And thats the life of a star!
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