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The Sun

The Sun. Physical Data. Hydrogen and Helium composition 696,000 km radius 1.4 grams per cubic centimeter density 25.4 solar day rotation 5780K surface temperature. The Solar Interior. Energy production in the core Radiative transfer Convection zone. The Solar Atmosphere. Photosphere

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The Sun

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  1. The Sun

  2. Physical Data • Hydrogen and Helium composition • 696,000 km radius • 1.4 grams per cubic centimeter density • 25.4 solar day rotation • 5780K surface temperature

  3. The Solar Interior • Energy production in the core • Radiative transfer • Convection zone

  4. The Solar Atmosphere • Photosphere • Chromosphere • Transition Zone • Corona

  5. Granulation Supergranulation limb darkening Active Regions sunspots umbra penumbra sunspot cycle Photosphere

  6. Red color spicules Chromosphere

  7. Very high temperature Solar wind coronal holes Corona

  8. Energy Production • Proton-proton chain • The neutrino mystery

  9. 10 million K required 3 steps Hydrogen becomes Helium Proton-Proton chain

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