ROYAL ASTRONOMICAL SOCIETY / SCIENCE PHOTO LIBRARY ROYAL ASTRONOMICAL SOCIETY / SCIENCE PHOTO LIBRARY
Christoph Scheiner's sunspot observations. Historical artwork showing the solar observations made by Christoph Scheiner (1573-1650) in the early 1600s. This engraving of various sunspots seen on the solar disc is from Scheiner's book Rosa Ursina sive Sol, which he published in Rome in 1630.
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