File:PSM V06 D760 Fraunhofer lines in the solar spectrum.jpg

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Description Fraunhofer lines in the solar spectrum
Date between 1874 and 1875
date QS:P,+1874-00-00T00:00:00Z/8,P1319,+1874-00-00T00:00:00Z/9,P1326,+1875-00-00T00:00:00Z/9
Source Popular Science Monthly Volume 6
Author Unknown authorUnknown author
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