EES

• Core

  It is the central region of the sun.
• Thermonuclear Fusion

  Hydrogen is converted into Helium and takes place in the core.
• Inner Layers of the Sun in order

  Core, Radiative Zone, Convection Zone
• Outer Layers of the Sun in order

  Photosphere, Chromosphere, Corona
• Convection Zone

  It is where a cycle of circulation is created.
• Cycle of Circulation in the convection zone

  Hot plasma rises, cooler plasma sinks.
• Photosphere

  Emits light and heat
• Chromosphere

  Reddish glow
• Corona

  Outermost layer of the Sun
• How is the corona seen?

  A faint halo of light surrounding the Sun's disk
• Sun spots

  Cooler, darker areas
• Prominence

  Large, bright features that extend outward from the Sun's surface to the corona
• Umbra


  darkest central region of sun spots
• Penumbra


  lighter region of sun spots
• How is prominence formed?

  When magnetic fields trap and suspend plasma above the solar surface
• How is the temperature in the umbra?

  Cool
• Stable Prominence

  • formed by the Sun’s magnetic fields which trap and suspend plasma above the solar surface
• Eruptive Prominence

  • undergoes sudden release of energy, resulting in changes to structure and behavior
• Solar Flares

  Sudden, intense bursts of radiation emitted by the Sun in the form of x-rays and UV lights
• What causes solar flares?

  rapid release of magnetic energy stored in the Sun’s atmosphere
• What are the effects of solar flares?

  radio blackouts, geomagnetic storms, and impact on spacecraft/satellites