Life cycle of a star
Storyboard Text
- Life cycle of a star
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- By Niven Gunawardena
- Stage 1: StellarNebula
- Stage 2: Massive star
- Sequence type: MASSIVE SEQUENCE
- Stage 3:Red super giant
- All stars begin in huge clouds of gas and dust which are known as stellar nebulas.Stars spend almost 90% of their cycle in this state.
- Stage 4: Super Nova
- This is the main stage in a star's life cycle. Massive stars are born like normal stars, out of stellar nebulas.It is a star that has a relatively larger radius and mass.
- Stage 5 (final stage): Neutron star/Blackhole
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- It exhausts hydrogen fuel, evolves off of the main sequence, and transitions to fusing helium within its core. As this occurs, the star's radius expands, causing its temperature to plummet.
- A supernova is when a star creates a massive explosion, each so powerful that it is visible even over vast distances.
- A neutron star is formed when the core of a supergiant star collapses. Stellar black holes can shape when the center of a large superstar collapses in upon itself. This can also cause another supernova, or an exploding star.
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