cartes & vues du ciel - simulateurs - planétariums
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Johann Gabriel Doppelmayr (also spelled Doppelmair, Doppelmaier or Doppelmayer) was the son of the Nuremberg merchant Johann Siegmund Doppelmayr (1641-1686) and was born on 27 September 1677 (many early sources incorrectly give his year of birth as 1671). His father had an interest in applied physics and was one of the first to design a vertical vacuum air pump in Nuremberg. Doppelmayr enrolled at the gidiengymnasium in 1689 and after completing his studies in 1696 enrolled at the nearby university of Altdorf to study law which he completed in 1698 with a dissertation on the Sun.