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16.3 Solar Activity

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Allie Earnhart

on 10 December 2015

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Transcript of 16.3 Solar Activity

The Sun
16.3 Solar Activity
Sunspots are temporary phenomena on the photosphere that appear darker compared to the rest of the sun. They are concentrations of magnetic fluid flux and results in the surface temperature being lower than the surrounding photosphere.
A prominence is a large, bright gaseous feature extending out from the sun, most of the time in a loop shape. They are anchored to the Sun's surface and extend out to the corona.
Solar flares are a sudden, rapid, and intense variation in brightness seen on the Sun. They occur when magnetic energy has built up in the solar atmosphere is suddenly released.
Auroras are a sign that the Sun is magnetically connected to the Earth. They are provoked by energy from the Sun and they are fueled by electrically charged particles trapped in Earth's magnetic field.
Layers of the Sun
the outermost layer of the sun and the temperature is 500,000 K or more. It can't be seen by the naked eye except during a total solar eclipse.
above the photosphere, the temperature varies from 4000 K at the bottom and 8000 K at the top and it gets hotter if you go away from the Sun, unlike in the lower layers, where it gets hotter if you go closer to the center of the Sun.

deepest layer of the sun and it is visible at the surface of the solar disc to 250 miles above it. The temperature varies from about 6500 K at the bottom and 4000 K at the top and most of it is covered by granulation
the source of all of the Sun's energy and it has a very high temperature, more than 15 million degrees Kelvin!
radiative zone:
section of solar interior between the inner core and the convection zone and the temperature is 3.5 million degrees F (2 million degrees C)
convective zone:
the temperature of the base is about 2 million degrees C and it is the outer-most layer of the solar interior
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