Our Sun

1
Our Sun Space Weather

• Space Weather
• Solar Maximum Minimum
• Fusion
• Stellar Nucleosynthesis

2
Space Weather The conditions in space from the
Suns atmosphere to Earths atmosphere.

• Sunspots
• Solar Flares
• Prominences
• Coronal Mass Ejections (CME)
• Solar Wind

3
Solar ActivityIdentify each event!
4
Solar Maximum The period of greatest solar
activity in the 11 year solar cycle of the sun.

• Caused by magnetic fields during a magnetic
  reversal (N S switch)
• Solar weather increases (see slide I.)
• Earth Impacts Auroras, disruption of satellite
  radio communication, power disturbances.

5
The 11 year Solar Cycle
6
Magnetic Reversals (11yr cycle)
7
Main Sequence Star Young stars that have
equilibrium between hydrogen fusion (pushing out)
gravity (pulling inward).
8
Red Giant Stars Older stars that begin fusing
heavier elements.
9
Stellar Nucleosynthesis - The process by which
the chemical elements assemble in the cores of
stars and through supernovae.
Supernova SN1987a
Supernova Aftermath Crab Nebula
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