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Mappa Selenographica

lunar map by Mädler and Beer

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The Mappa Selenographica was a detailed lunar map created by German astronomers Wilhelm Beer and Johann Heinrich von Mädler. Published between 1834 and 1836, it was the most complete map of the Moon of its time and the first to be divided into quadrants.12

This selenographic chart, a map representing the Moon's surface, included detailed depictions of lunar features. It was accompanied by a volume in 1837 that provided micrometric measurements of crater diameters and mountain elevations. The Mappa Selenographica remained the definitive lunar map until 1878. Beer and Mädler also collaborated on an early map of Mars.312

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