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Chapter 9
space weather - Coggle Diagram
Chapter 9
space weather
structure of
the sun
Photosphere
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granules
① cells of plasma,
② hot rising plasma in the center,cooler plasma falling in the narrow spaces between them
③ 1000 kilometers in diameter
④ lifespan -8 to 20minutes
⑤ super granules - 24hours
sunspot
① regions of reduced surface temperature caused by concentraitoions of magnetic feild flux
that inhibit convection
② appear in pairs of opposite magnetic polarity
③appear dark because their temperature lower tham surrounding granules
④activities varies approximately 11year (solar cycle)
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Earth's magnetosphere
①combinatian of earth's magnetic feild
and the magnetic feild in outer space
②protect Earth from the adverse effect
caused by dangerous particles from the
Sun or other bodies in the Universe.
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solar wind
①a stream of charge particles released from corona
②plasma mostly consists of electrons ,protons and alpha particles
③speed of supersonic (250km/s-750km/s)
corona
① aura of plasma that surrounds yhe sun
② easily seen during a total solar eclipse
③ temperature excess 1000000 kelvin
④ much hotter than the surface of the sun
① release of plasma and accompanying magnetic feild from the solar corona
② magnetized plasma consisting primarily of electrons and protons
③ often follow solar flares and are normally present during a solar prominence eruption