Talk about international collaboration. When Polish astronomer Johannes Hevelius began working on his 1687 map of the stars, he wrote to German theologian Henry Oldenburg, secretary of the Royal Society in England. The request: to locate the 15th century star map of astronomer Ulugh Beg of Samarkand and translate it from Persian. The Royal Society fulfilled his request, and the map guided Hevelius's new observations. This frontispiece to Hevelius's map pays homage to Beg; as Hevelius presents the book to Urania, muse of astronomy, the top 10 astronomers of all time look on. Beg is third from left.
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