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Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
Life Cycle Of A Star
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Life Cycle Of A Star

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  • 1. Life Cycle of a Star Waves, Atoms and Space
  • 2. Stage 1 Protostars
  • 3.  
  • 4. Protostars
    • Huge clouds of gas (hydrogen) in which stars are made.
    • Many thousands of times bigger than our solar system
    • As the clouds collapse stars are born in them
  • 5.  
  • 6. Stage 2 Main sequence star
  • 7.  
  • 8.  
  • 9. Main Sequence Star
    • E.g. Our sun
    • Sequence lasts for about 10 000 million years
    • Our sun is about half way through it’s main sequence
  • 10.  
  • 11. Stage 3 Red Giant
  • 12.  
  • 13.  
  • 14. Red Giant
    • As the sun runs out of hydrogen the outer layers of the sun will become cooler
    • They will also expand massively.
    • The Earth (along with Mercury, Venus and Mars) will be swallowed up.
  • 15. Stage 4 White Dwarf
  • 16.  
  • 17.  
  • 18. White Dwarf
    • Gravity will cause the red giant to collapse
    • The sun is now much cooler and it collapses into a small white star
    • It still has the same mass as the original sun!
  • 19.  
  • 20. Stage 5 Black Dwarf
  • 21.  
  • 22.  
  • 23.  
  • 24. Black Dwarf
    • The sun cools more and more
    • Eventually it will become a black mass emitting no light
    • It will then spend the rest of eternity drifting silently through space
  • 25. Stars bigger than our sun! At least four times bigger (you don’t need to know about these for your exams)
  • 26. Stage 4 (for a big star) Red Supergiant
  • 27.  
  • 28.  
  • 29.  
  • 30. Stage 5 (for a big star) Supernova
  • 31.  
  • 32. Supernova!
    • The largest and most powerful explosions in the universe.
    • The red supergiants literally blow themselves apart!
  • 33.  
  • 34. Supernova
    • All the atoms we are made from came originally from these giant supernova explosions.
  • 35.  
  • 36. Stage 6 (for a big star) Black hole
  • 37.  
  • 38.  
  • 39. Black hole
    • After the supernova a huge mass is left behind.
    • There is so much mass its gravity prevents even light from leaving it
    • Black holes can suck in nearby stars and solar systems.
  • 40.
    • Luckily there are no black holes any where near our sun!

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