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1.2e the sun and stars



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  • 1. Enhancement Lesson
  • 2.  Red Giant – a large, reddish star late in its life cycle that fuses helium into carbon or oxygen.
  • 3.  Supergiant – an extremely large star that creates elements as heavy as iron.
  • 4.  Supernova – a powerful explosion that occurs when a massive star dies.
  • 5.  White Dwarf – A small, very dense star that remains after fusion in a red giant stops.
  • 6.  Neutron Star – a dead star with the density of atomic nuclei.
  • 7.  Black Hole – an object so massive and dense that not even light can escape its gravity.
  • 8.  Coronal streamer-A wisp- like stream of particles that gradually moves away from the Sun and becomes part of the solar wind.
  • 9.  Coronal holes - are areas of the Suns surface that are the source of open magnetic field lines that head way out into space.
  • 10.  Photosphere - imaginary surface from which the solar light that we see appears to be emitted.
  • 11.  Sunspot – temporary phenomena on the photosphere caused by magnetic activity which inhibits convection forming areas of reduced temperature.
  • 12.  Chromosphere – An incandescent, transparent layer of gas, primarily hydrogen, several thousand miles in depth, lying above and surrounding the photosphere of a star, such as the sun, but distinctly separate from the corona.
  • 13.  Filament – are formed in magnetic loops that hold relatively cool, dense gas suspended above the surface of the Sun.
  • 14.  Corona hole – areas where the Suns corona is darker, colder, and has lower- density plasma than average.
  • 15.  Convective Zone – the range of radii in which energy is transported primarily by convection.
  • 16.  Radiative Zone – In the radiation zone, energy is transported by radiation.
  • 17.  Core – The core is the source of all the Suns energy. The Suns core has a very high temperature, more than 15 million degrees Kelvin, and the material in the core is very tightly packed or dense
  • 18. 1 Fusion MainProtostar Ignition Sequence Red & Supergiants White Dwarf Black Hole