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Peter Zetner | all galleries >> Astrophotography >> Solar Photos (2014+) >> Spectroheliograph > 100132-0005_prom-spec_final_label_crop.jpg
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12-JUL-2014

100132-0005_prom-spec_final_label_crop.jpg

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Date/Time12-Jul-2014 16:33:25
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Peter Zetner23-Aug-2014 18:27
The Prominence / AR spectrum shows a tremendous "zig-zag". I call it a lightning bolt! The zig-zag is indicative of regions of rapidly receding and approaching plasma closely spaced to each other. The red and blue shifts are associated with of speeds of 90 km/s and the "spiky" nature of the spectrum tells me that there are well-defined streams of gas heading towards and away from us - likely surges. Further out in the prominences (two are mainly visible) the lower spectrum shows gas which seems to be largely blue shifted.
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