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Detail of solar prominence

20170821-K3ii-00743.jpg Corona, prominences, and RegulusThumbnailsExtreme coronaCorona, prominences, and RegulusThumbnailsExtreme coronaCorona, prominences, and RegulusThumbnailsExtreme coronaCorona, prominences, and RegulusThumbnailsExtreme corona

August 2017 total solar eclipse
Lake Keowee, South Carolina, USA