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LIFE AND DEATH OF STARS

LIFE AND DEATH OF STARS. NEBULA. Cloud of swirling gas and dust where stars are born Gravity causes matter to condense Will turn into a …. PROTOSTAR. The beginning of a star. It has not begun fusing matter yet. It then can turn into a…. Main Sequence Stars.

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LIFE AND DEATH OF STARS

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  1. LIFE AND DEATH OF STARS

  2. NEBULA • Cloud of swirling gas and dust where stars are born • Gravity causes matter to condense • Will turn into a ….

  3. PROTOSTAR • The beginning of a star. • It has not begunfusing matter yet. • It then can turn into a…

  4. Main Sequence Stars • WHEN THE PROTOSTAR IS DENSE & HOT ENOUGH IT WILL BEGIN FUSION & LIGHT UP! • HYDROGEN IS BEING COVERTED TO HELIUM • IT IS NOW A MAIN SEQUENCE STAR!

  5. 1 OF 3 MAIN SEQUENCE STARSRED DWARF (SMALL) • A small star that lives billions of years • Or a ….

  6. MAIN SEQUENCE STARYELLOW STAR (MEDIUM) • A medium star • Shorter lived than a red dwarf but still lives billions of years • But sometimes a protostar turns into a…

  7. MAIN SEQUENCEBLUE GIANT (LARGE) • A large star • It has the shortest life span • Living only millions of years…. • However…..

  8. RED GIANTS (form from small & medium sized main sequence stars) Evolves from either a red dwarf or a yellow star • Red giants begin to lose energy when most of its matter fuses into bigger elements • Helium converts to carbon & oxygen • Causing it to expand and engulf nearby planets • Which then turns into a…

  9. WHITE DWARF • It cools and contracts • Helium runs out & core contracts, outer layers leave and produces this small dense star • Finally it becomes a…

  10. BLACK DWARF • It eventually cools • It becomes a big “charcoal piece” in space • But remember ….

  11. BLUE GIANT (large sized main sequence star) • It takes another path in its life cycle • It becomes a…

  12. RED SUPER GIANT • Loses energy • Matter fused into bigger elements • Fusion occurs until iron core is reached • It expands engulfing nearby objects • Then it becomes a …

  13. SUPER NOVA • Very large stars explode when they contract • Forms heavier elements like gold or lead • Then it becomes either a…

  14. BLACK HOLEor NEUTRON STAR (Pulsar) • A dead star so dense even light can’t escape • A very dense dead star • So….

  15. REVIEW OF STARS LIFE CYCLENebula to proto star

  16. Proto star to either red dwarf, yellow star or blue giant

  17. Red dwarf or yellow star (small & medium sized) becomes a red giant

  18. Red giant becomes a white dwarf and then a black dwarf

  19. A blue giant (large star) becomes a red super giant

  20. A red super giant then becomes a super nova and then either a black hole or neutron star

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