Cross eyed technique www.starosta.com Courtesy: NASA/Jet Propulsion Laboratory and NASA/Goddard Space Flight Center Scientific Visualization Studio This movie shows the Sun from the two STEREO spacecraft using the 171 Ångstrom filter in the Extreme UltraViolet Imager (EUVI). The 171 filter reveals ionized iron (Fe+8=Fe IX, Fe+9=Fe X) which forms at temperatures above 1.3x106K, and flows along the magnetic field lines of the solar active regions. New active regions come into view as the Sun rotates left to right.
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