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5 of 20 from The magnetism of solar flares (pictures)
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Three images are combined here to depict a view of the sun's corona in a more narrow temperature range. AIA 211 at 3.6 million degrees Fahrenheit is red; AIA 193 at 2.5 million degrees Fahrenheit is green; and AIA 171 at the 1.8 million degree range is blue.
February 28, 2013 4:17 PM PST
Photo by: NASA/SDO
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