Lifecycle of a Star
Storyboard Text
- In the nebula, newborn stars are form as nebula stars fuse hydrogen into helium, which forms a new star.
- As a star forms, it will form a protoplanetary disk. The disk is orbiting around the star, which will turn into planets that orbit the star in the future.
- Eventually, the star's system becomes stable, planets are formed, and life may exist on the planet that is located in the habitable zone.
- Black Hole
- Neutron Star
- White Dwarf
- As the star begins to come to the end of its life, the star becomes a red giant. It will increase its size and temperature. It will start to pill off of the main sequence on the HR diagram because the star's surface temperature starts to decrease.
- The star will experience a catastrophic event at the end of its life. If the stars are around the same size as the Sun, they will have a Nova. If the stars are three or four times the size of the Sun, they will have a Supernova.
- After the catastrophic event, a sun-like star will turn into a white dwarf. The stars with the mass of two suns will become neutron stars. A star that is about 20 times more massive than the Sun can become a black hole.
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