Christoph Scheiner and a fellow Jesuit scientist trace sunspots in Italy in about 1625. Illustration from <i>Rosa Ursina</i> by Christoph Scheiner. p. 150. Scanned from original at Houghton Library, Harvard University. Call # GC6.Sch256.630r
<bdi><a href="https://en.wikipedia.org/wiki/en:Christoph_Scheiner" class="extiw" title="w:en:Christoph Scheiner"><span title="Jesuit father, physicist and astronomer (*1575 – †1650)">Christoph Scheiner</span></a>
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1630
<a rel="nofollow" class="external text" href="http://id.lib.harvard.edu/aleph/002530501/catalog">GC6.Sch256.630r, Houghton Library, Harvard University</a>