Solar Activity

by: Mary Grace Ussary

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The Suns Layers

Core- Is the innermost part of the sun and this is where the sun releases energy through nuclear fusion. The core is around 150 times as dense as water and is about 28 million degrees Fahrenheit.

Radiative Zone- This is the layer above the core and this is where the light produced by nuclear fusion travels out in the shell. Not as dense as the core but is still so dense that it takes light around 100,000 years to get past it.

Convective Zone- This is the layer above the radiative zone and this is where the energy in the form of light will be converted into heat.

Photosphere- This is the deepest layer of the sun. The temperature varies between about 6500 K at the bottom and 8000 K at the top.

Chromosphere- Is a layer in the sun above the solar surface and the temperature varies between about 4000 K at the bottom and and 8000 k at the top, so it actually gets hotter as you move away from the sun.

Corona- This is the outermost layer of the sun, the temperature is in between 5000 k and a few million K. It cannot be seen with the naked eye except for during an eclipse.

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Sunspots

Sunspots are dark spots that appear on the sun because they are cooler than the surrounded areas.
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Prominence

Prominence is huge arches or loops of glowing gas that extend outward from the sun's surface.
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Solar Flares

Solar Flares are explosions that occur on the sun, often near sunspots.
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Aurora

Aurora's are the result of collisions between gaseous particles in Earth's atmosphere and charged particles released by the sun's atmosphere.