Hugo Gylden

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Hugo Gylden

Johan August Hugo Gyldén (born May 29, 1841 in Helsinki , † November 9, 1896 in Stockholm ) was a Swedish astronomer .

Life

Gyldén was the son of the professor of Greek language Nils Abraham Gyldén and took his master's degree in philosophy in Helsinki in 1860 . The following year he devoted himself to theoretical studies in Gotha with Hansen and then continued his education at the Pulkovo observatory . As early as 1863 he was employed there and in 1865 was appointed "Senior Astronomer".

In 1871 Gyldén was offered a professorship at Stockholm University . There he worked as the director of the Stockholm Academic Observatory . In 1879 he was elected a corresponding member of the Göttingen Academy of Sciences and the Académie des Sciences in Paris. In December 1882 he became a corresponding member of the Russian Academy of Sciences in St. Petersburg . In 1884 he received a call to the University of Göttingen , but turned it down. During this time he was also active in teaching. In 1892 he was elected to the American Academy of Arts and Sciences and the National Academy of Sciences .

From 1889 to 1896 Gyldén was chairman of the Astronomical Society .

He became known for his work in the field of celestial mechanics , which was partly carried out by other astronomers, such as B. Martin Brendel , were taken up and expanded.

The asteroid (806) Gyldénia and the lunar crater Gyldén were named after Gyldén . In 1878 he received the Cothenius Medal of the Leopoldina .

Publications

  • Investigations on the constitution of the atmosphere and the refraction of rays in the same (= Mémoires de l'Académie Impériale des Sciences de St. Pétersbourg. Series 7, Volume 10, No. 1). Imperial Academy of Sciences, Saint Petersburg 1866, ( digitized version ).
  • Investigations into the constitution of the atmosphere and the refraction of rays in it. (Second treatise) (= Mémoires de l'Académie Impériale des Sciences de St. Pétersbourg. Series 7, Volume 12, No. 4). Académie Impériale des Sciences, Saint Petersburg 1868, ( digitized version ).
  • Studies in the field of perturbation theory. 1: Development of some connections of elliptical functions (= Mémoires de l'Académie Impériale des Sciences de St. Pétersbourg. Series 7, Volume 16, No. 10). Académie Impériale des Sciences, Saint Petersburg 1871, ( digitized version ).
  • The basic teachings of astronomy are presented according to their historical development. German, extended edition provided by the author. Engelmann, Leipzig 1877, ( digitized version ).
  • Recueil de tables contenant les développements numériques à employer dans le calcul des perturbations des comètes. Norstedt & Söner, Stockholm 1877, ( digitized ).
  • Attempt of a mathematical theory to explain the change in light of variable stars. In: Acta Societatis Scientiarum Fennicae. Volume 11, 1880, pp. 345-407 .
  • Undersökningar af theorien för himlakropparnas rörelser (= Kongl. Svenska Vetenskaps-Akademiens handlingar. Bihang. 6, 8 and 6, 16 and 7, 2, ZDB -ID 777850-8 ). 3 volumes. Norstedt & Söner, Stockholm 1881–1882.
  • The intermediate orbit of the moon. In: Acta Mathematica . Volume 7, 1885, pp. 125-172, doi : 10.1007 / BF02402199 .
  • Investigations on the convergence of the series which are used to represent the coordinates of the planets. In: Acta Mathematica. Volume 9, 1887, pp. 185-294, doi : 10.1007 / BF02406738 .
  • Nouvelles recherches sur les séries employées dans les théories des planètes. In: Acta Mathematica. Volume 15, 1891, pp. 65-189, doi : 10.1007 / BF02392604 and Volume 17, 1893, pp. 1-168, doi : 10.1007 / BF02391989 .
  • Traité analytique des orbites absolues des huit planètes principales. 2 volumes. Beijer et al., Stockholm et al. 1893–1908;
    • Volume 1: Théorie générale des orbites absolues. 1893, ( digitized version );
    • Volume 2: Détermination des inégalités des huit planètes principales dépendant de leurs configurations. 1908, ( digitized version ).

literature

Web links

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. 99.
  2. ^ Foreign members of the Russian Academy of Sciences since 1724: Gyldén, Johan August Hugo. Russian Academy of Sciences, accessed November 19, 2019 (Russian).
personal data
SURNAME Gylden, Hugo
ALTERNATIVE NAMES Gyldén, Johan August Hugo (full name)
BRIEF DESCRIPTION Swedish astronomer
DATE OF BIRTH May 29, 1841
PLACE OF BIRTH Helsinki
DATE OF DEATH November 9, 1896
Place of death Stockholm