Structure of the Sun and Solar Activity

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Structure of the Sun and Solar Activity
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The Inner Zone a. Radiative zone. Energy moves to
the outside by Electromagnetic radiation, like a
heat lamp. b. The radiative zone is about
2,500,000 Centigrade c. Convective zone. Energy
moves to the outside by convection, like boiling
water. d. The convection zone is about 1,000,000
Centigrade
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The suns Atmosphere a. The most inner layer is
the photosphere. This is where the light is
given off. Like a photograph. b. The photosphere
is only about 5,500 to 6,000 degrees c. Consider
ed the surface of the sun d. First layer of
atmosphere is chromosphere e. Next layer is
corona, or crown Solar wind is last layer, and
it reaches to Earth and beyond
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Solar Activity Sunspots a. Cool areas on the
surface of the sun, so they look black b. Come
11 years cycles c. Associated with solar flares
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Prominences a. Arches of glowing gases, that
connect sunspots b. Can last weeks or years
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Solar flares a. Eruptions of hot gas b. Can
disrupt power grid on Earth
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Auroras a. Glowing lights from interaction of
solar wind and Earths upper atmosphere
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Formation of the Solar System a. Sun and all of
solar system formed in solar nebula b. Planets
first formed planetesimals (really
small) c. Planetesimals grew to protoplanets
(little bigger) d. Protoplanets grew to planets
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