Johann Karl Burckhardt

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Johann Karl Burckhardt

Johann Karl Burckhardt (born April 30, 1773 in Leipzig , † June 22, 1825 in Paris ) was a German astronomer .

Life

Burckhardt studied mathematics and astronomy at the University of Leipzig and later joined Zach at the Gotha observatory , where he took practical lessons in observing the sky as an adjunct . Zach recommended him to Lalande in Paris in 1797 , where Burckhardt was particularly concerned with calculating the orbits of comets . Burckhardt became an adjunct at the Paris length office and received the French naturalization letter as a French citizen on December 20, 1799 .

After Lalande's death in 1807, Burckhardt became an astronomer at the observatory at the Paris Military School. His moon tables published in 1812 were long considered the best of their time. In 1817 he published tables of the prime factors of all natural numbers less than 3,000,000. Since 1799 he was a corresponding member of the Göttingen Academy of Sciences and since 1801 a corresponding member of the Russian Academy of Sciences in St. Petersburg . In 1804 he was elected to the Académie des Sciences , 1808 to the Bavarian Academy of Sciences and 1822 to the American Academy of Arts and Sciences .

The lunar crater Burckhardt is named after him.

Works

  • Methodus combinatorio-analytica, evolvendis fractionum continuarum valoribus maxime idonea . Leipzig 1794
  • Treatise on the comet of 1770 in the Mémoires de l'Institut . 1806 (award-winning)
  • Table des diviseurs pour tous les nombres du premier, second et troisième million , Paris 1817

Individual evidence

  1. ↑ Holger Krahnke: The members of the Academy of Sciences in Göttingen 1751-2001 (= Treatises of the Academy of Sciences in Göttingen, Philological-Historical Class. Volume 3, Vol. 246 = Treatises of the Academy of Sciences in Göttingen, Mathematical-Physical Class. Episode 3, vol. 50). Vandenhoeck & Ruprecht, Göttingen 2001, ISBN 3-525-82516-1 , p. 53.
  2. ^ Foreign members of the Russian Academy of Sciences since 1724. Johann Karl Burckhardt. Russian Academy of Sciences, accessed August 7, 2015 .
  3. ^ Directory of members since 1666: Letter B. Académie des sciences, accessed on September 29, 2019 (French).
  4. ^ Member entry by Johann Karl Burckhardt at the Bavarian Academy of Sciences , accessed on December 19, 2016.

Web links

personal data
SURNAME Burckhardt, Johann Karl
BRIEF DESCRIPTION German astronomer
DATE OF BIRTH April 30, 1773
PLACE OF BIRTH Leipzig
DATE OF DEATH June 22, 1825
Place of death Paris