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Sun corona vs center temperature full#
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“Elemental composition is an important component of the flow of mass and energy into the atmospheres of the Sun and other stars. These findings “could have significant implications for understanding the process leading to the heating of the sun's corona,” the statement said. When certain elements in the sun’s atmosphere, like iron, are seen to be in higher concentration, the magnetic activity is observed to be higher as well. Read: Scientists Reevaluate The Sun’s Surface Speedįunded by NASA’s Hinode program, the research found the elemental composition of the corona is strongly correlated with the solar magnetic activity, which has an 11-year cycle. Brooks of GMU, who was the lead author of the study, said in a statement issued by UCL on Thursday. It doesn’t make any sense! Solar astronomers think that the key lies in the magnetic field, but there are still arguments about the details,” David H. It’s as if a flame were coming out of an ice cube. “Why the sun’s corona is so hot is a long-standing puzzle. But research conducted by University College London (UCL), George Mason University (GMU) in Fairfax, Virginia, and the Naval Research Laboratory may have found a significant clue to unraveling some of the mystery.
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The surface of the sun - the photosphere - itself is a scalding 6000 degrees hot, but if you tried to get to our friendly neighborhood star, even if using a spacecraft that could withstand that temperature, you would burn up the moment you come into contact with the solar atmosphere.Ĭalled the corona, the sun’s atmosphere is several hundred times hotter than its surface, and how the corona reaches its temperature of millions of degrees is one of the great unsolved problems of astrophysics.
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The light from the sun takes eight minutes to travel to Earth, and it loses a considerable amount of its heat as it traverses the 150 million kilometers (93 million miles) that separate the two bodies. This is the sun's one million degree corona at a time of low activity on May 14, 2010.