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Keywords from Image Description:
Athanasius Kircher sunspots. Illustration of sunspots drawn by thcentury German Jesuit scholar Athanasius Kircher Athanasius Kircher Scan Deutsche Fotothek dftg color MIKCenter Berlin GmbH Abbildung Wrzburg Nrnberg Sonnenaktivitt Sonnenflecken Figur Sonneneruptionen Figur Papier Kupferstich cm Astronomie Physik Sonne ppn