This was a significant lunar chart and offered an entirely new nomenclature which, for the most part, is still in use today. This map first appeared in Riccioli and Grimaldi’s 1651 Almagestum Novum. The Riccioli map, on the right, is more properly known as the Riccioli-Grimaldi map, after fellow Jesuit Francesco Grimaldi with whom Riccioli composed the chart. were popular until the middle of the 18th century when Giovanni Battista Riccioli’s nomenclature took precedence. The naming conventions he set forth, which associate lunar features with terrestrial locations such as “Asia Minor”, “Persia”, “Sicilia”, etc. In this map Hevelius also establishes the convention of mapping the lunar surface as if illuminated from a single source – in this case morning light. Here the moon is presented as it can never be seen from Earth, at a greater than 360 degrees and with all visible features given equal weight. This map first appeared in Hevelius’ 1647 work Selenographia which laid the groundwork for most subsequent lunar cartographic studies. The left hand lunar map, composed by Johannes Hevelius, is a considered a foundational map in the science of Selenography – or lunar cartography. Copper engraving made by Johann Baptist Homann after Johann Gabriel Doppelmayr, from the Atlas Coelestis in quo Mundus Spectabilis published in Nuremberg in 1742 or 1748. “ Tabula Selenographica in qua Lunarium Macularum exacta Descriptio secundum Nomenclaturam … Hevelii quam Riccioli”.
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