The Sun

Created by Joeliene DeVries

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The Sun's Layers

  • Core - The innermost part of the sun, gravity presses hydrogen to form helium and release energy through nuclear fusion. It has an average temperature of 28 million degrees Fahrenheit.
  • Radiative Zone - Less dense than the core, though it still takes light created by nuclear fusion 100,000 years to pass through it.
  • Convective Zone - Above the radiative zone and less dense. This is where light energy is turned into heat energy, then it begins a process like boiling and creates convection cells.
  • Photosphere - This is the deepest layer scientists can observe, and is covered mostly in granulation (bonded together particles)
  • Chromosphere - Outside the photosphere, and gets hotter the farther away from the core in this section.
  • Corona - This is the outermost layer of the sun, with no upper limit to it. It cannot be seen with the naked eye, except during a a total solar eclipse or with a coronagraph.
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Sun Anomalies

  • Sunspots - A temporary phenomenon when parts of the photosphere are cooler than others
  • Prominence - A large gas loop that extends from the photosphere that reaches to the corona
  • Flare - Large bursts of radiation caused by released magnetic radiation from sunspots
  • Aurora - Caused by a large gas cloud/CME from the sun colliding with the Earth atmosphere. It causes particles that are not seen by the naked eye to diffuse

The Aurora Borealis

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