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The Sun

What is the atmosphere of the sun?


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November 27, 2009 4:52PM

Corona the corona is the Sun's atmosphere,extending out several million miles from the Sun's visible face,the photosphere despite its extent,it is exceedingly faint,shining with only one-millionth as much light as the photosphere.For this reason the corona is most easily photographed during a solar eclipse,when the photosphere blocked by the Moon.A capful of gas from the photosphere contains a trillion times more gas particles than a cupful from the corona. Only the Sun's outer layers, collectively referred to as the solar 'atmosphere', can be observed directly. There are distinct regions to the solar atmosphere: the photosphere, the chromosphere, and the corona. These three regions have substantially different properties from each other, with regions of gradual transition between them.