Physic project
Updated: 5/11/2020
Physic project
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Storyboard Text

  • STAGE 1: Main Sequence-Nebula
  • Nebulae are made of dust and gases—mostly hydrogen and helium.
  • Eventually, the clump of dust and gas gets so big that it collapses from its own gravity.
  • The collapse causes the material at the center of the cloud to heat up-and this hot core is the beginning of a star.
  • A star's life begins when nuclear reactions start deep in the core.
  • STAGE 2: Red Giant Phase-Protostar
  • The hot temperatures cause the outer layers of the star to expand.
  • When the star uses up its hydrogen fuel in the core, it can no longer hold up its outer layers. They fall inward. The center gets hotter.
  • As a result, the star gets bigger and the surface cools. The star is now a red giant.
  • A protostar is a very young star that is still gathering mass from its parent molecular cloud.
  • STAGE 3: The Outer Layers Blow Off - Main sequence
  • The gas cloud surrounding the star is called a planetary nebula.The exposed inner part of the star remains as the central star in the planetary nebula.
  • As the star expands,the outer layers blow off at an incredible rate. A star can lose more than half of its mass during this stage.
  • These central stars are the hottest stars known. They are not very luminous because they are extremely small -- about the size of the Earth.
  • main sequence is a continuous and distinctive band of stars that appears on plots of stellar color versus brightness.
  • A white dwarf is very dense: its mass is comparable to that of the Sun, while its volume is comparable to that of Earth.
  • STAGE 4: White Dwarf
  • As bizarre as they are, white dwarfs are very common objects in the Universe.
  • They continue to radiate their immense internal energy into space as they continue on their journey to become black dwarfs.
  • STAGE 5: Black Dwarf
  • When they reach 4000 K these bizarre stellar objects must start to crystallize. The time this requires is very long. In fact, no white dwarf generated has yet had enough time to cool to a black dwarf.
  • A black dwarf is a theoretical stellar remnant, specifically a white dwarf that has cooled sufficiently that it no longer emits significant heat or light.
  • Everything will start the process again.
  • STAGE 6: After Black Dwarf
  • And the Nebulae will made up the dust and cloud and it will continue to stage 1 - 5.
  • When the fuel is used up, there is nothing to hold the star's layers up against gravity and the star begins to collapse. Gravity squeezes the star down into a very small size.
  • A white dwarf, also called a degenerate dwarf, is a stellar core remnant composed mostly of electron-degenerate matter.
  • White dwarfs are some of the hottest objects in the known universe with temperatures ranging from 30,000 K to 200,000 K.
  • Once the black dwarf evaporated into an exotic from of hydrogen.
  • At the end of a black dwarf's life, the onetime star will experience proton decay and eventually evaporate into an exotic form of hydrogen.
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