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The Sun

The solar system: The Sun

Aurora Australis Southern lights; caused by solar winds
Aurora Borealis Northern lights; caused by solar wind
Convection Zone (Sun's interior)top or outermost layer. Gases rise and cool; then sink, forming loops of gas that move energy towards sun's surface. Generates sun's magnetic field.
Corona Outer layer of sun's atmosphere; visible during total solar eclipse; looks like a halo around the sun; extends into space for millions of km; gradually thins into think streams of electrically charged particles called solar wind.
Solar Flares Sudden bursts of energy in the form of fire that erupts on the sun's surface; happens when sunspot loops connect and release huge amounts of magnetic energy
Solar Winds Solar flares increases this; responsible for increase in number of magnetic particles reaching Earth's atmosphere; create powerful electric currents that result in greenish, red or purple glow in Earth's sky; can also cause magnetic storms
Sunspots Areas of gas on the sun's surface; cooler than the gas around it; appear darker; helped prove sun rotates on its axis; 11 year cycle; most disappear in two weeks; form where magnetic field is strongest
Differential rotation Different parts of the sun have different periods of rotation, it also influences magnetic activity on the sun.
Created by: kelleyumlauf