Johan Gabriel Doppelmayr

Johan Gabriel Doppelmayr (1671–December 1st, 1750) was a German mathematician, astronomer, and cartographer. (His surname is also spelled Doppelmayer and Doppelmair, and his personal name Johann.)

Related Topics:
1671 - December 1 - 1750 - German - Mathematician - Astronomer

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He was born in Nuremberg, Germany, the son of the merchant Johann Siegmund Doppelmayr. He entered the Aegidien Gymnasium in Nuremburg in 1689, then the University of Altdorf in 1696. His studies included mathematics, physics, and jurisprudence. He completed his studies in 1698 with a dissertion on the Sun.

Related Topics:
Nuremberg, Germany - Merchant - Aegidien Gymnasium - 1689 - University of Altdorf - 1696 - Physics - Jurisprudence - 1698 - Sun

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He spent a brief time studying at the University of Halle, where he also learned French and Italian. After giving up his legal studies he then spent two years travelling and studying. In addition to his native Germany, he is known to have passed through the Netherlands and England, spending time at Utrecht, Leiden, Oxford, and London.

Related Topics:
University of Halle - French - Italian - Netherlands - England - Utrecht - Leiden - Oxford - London

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His career was academic, and he became professor of mathematics at the Aegidien Gymnasium from 1704 until his death. He is not noted for any discoveries, but he did publish several works of a scientific nature. His publications covered topics on mathematics and astronomy, including sundials, spherical trigonometry, and celestial maps and globes. One of his works also included useful biographical information on several hundred mathematicians and instrument makers of Nuremberg. In 1742 he completed the Atlas Coelestis of the monk Johann Batiste Homann, a frequent collaborator.

Related Topics:
Professor - 1704

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He married Susanna Maria Kellner in 1716, and the couple had four children of which one survived. Johan became a member of several scientific societies, most notably the Berlin Academy, the Royal Society in 1733, and the St. Petersburg Academy of Sciences (1740).

Related Topics:
1716 - Royal Society - 1733 - 1740

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The Doppelmayer crater on the Moon was named for him by Johann Hieronymus Schröter in 1791.

Related Topics:
Doppelmayer crater - Moon - Johann Hieronymus Schröter - 1791

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