mercredi 18 avril 2012

SDO and STEREO Spot Something New On the Sun 04.09.12

The changes of a coronal cell region as solar rotation carries it across the solar disk as seen with NASA's STEREO-B spacecraft. The camera is fixed on the region (panning with it) and shows the plumes changing to cells and back to plumes again -- based on the observatory's perspective -- during the interval June 7-14, 2011. Credit: NASA/STEREO/NRL

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