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The Sun

The Sun. By: Ashley Murray. Facts About the Sun. Weighs as much as 300,000 Earths Is the main source of energy for the Earth Is a yellow main sequence star Is 8 light minutes away. The core of the sun…. Is the innermost layer of the sun

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The Sun

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  1. The Sun By: Ashley Murray

  2. Facts About the Sun • Weighs as much as 300,000 Earths • Is the main source of energy for the Earth • Is a yellow main sequence star • Is 8 light minutes away

  3. The core of the sun… • Is the innermost layer of the sun • Has a temperature of 15 million kelvins (27 million degrees Fahrenheit) • Is where fusion reactions produce energy • Is where the synthesis of helium takes place • Extends outward to where it covers 25% of the sun’s radius

  4. Radiation Zone • The temperature in the radiation zone is cooler than the core. • Extends from the core outward to about 70% of the sun’s radius • In the radiation zone, energy generated by nuclear fusion in the core moves outward

  5. Convection Zone • The outermost layer of the interior • Extends from a depth of 200,000 km up to the visible surface of the sun • The surface of the convection zone is where light is created • It is made up of plasma

  6. Photosphere • The visible surface of the sun • Sunspots are often visible on the photosphere • One of the coolest regions of the sun • The densest part of the solar atmosphere

  7. Chromosphere • 2000-3000 km thick • When it can be seen it’s reddish in color • Lies just outside the photosphere • The temperature in the chromoshere rises slowly as you go further outward

  8. Transition Region • Above the chromosphere • About 100 km thick • The temperature increases rapidly • The density drops dramatically

  9. The Solar Corona • Extends more than one million kilometers from the sun’s surface • The temperature can reach two million degrees. • Where the solar wind originates • Has been found to emit x-ray radiation • Can be seen only during solar eclipses

  10. Sunspots • “Sunspots are regions on the sun’s surface that burn thousands of degrees cooler than their surroundings.” • “Sunspots were known to ancient astronomers, but their nature still holds many mysteries.” • “They are formed by complex magnetic storms on the sun.”

  11. Work Cited • http://www.mjjsales.com/articles/basic-facts-about-the-sun.html • http://imagine.gsfc.nasa.gov/docs/science/mysteries_l1/corona.html

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