Arnold Kohlschütter

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Arnold Kohlschütter (born July 6, 1883 in Halle an der Saale , † May 28, 1969 in Bonn ) was a German astronomer and astrophysicist .

Kohlschütter was the son of the physician Ernst Kohlschütter and his wife Helene Spielberg, daughter of the lawyer Wilhelm Spielberg . Together with Walter Sydney Adams he found a connection between the relative intensity of certain spectral lines and the luminosity of a star . He founded the possibility of spectroscopic determination of the distance of stars ( spectroscopic parallax ).

As a student, Kohlschütter attended lectures by Karl Schwarzschild in Göttingen . There was also an assistant there in 1906. In 1908 he went to Kiel and in 1909 to Bergedorf near Hamburg . From 1911 to 1914 Kohlschütter was an astronomer at the Mt. Wilson Observatory and from 1918 assistant at the Astrophysical Observatory Potsdam . From 1919 he was an observer there and from 1923 main observer. From 1920 he held the position of private lecturer at the University of Berlin . In 1925 he became a professor at the university and director of the Bonn observatory (his predecessor was Karl Friedrich Küstner ). There he devoted himself to astrometric projects such as the Bonn part of AGK2. In 1939 he was elected a member of the Leopoldina .

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SURNAME Kohlschütter, Arnold
BRIEF DESCRIPTION German astrophysicist
DATE OF BIRTH July 6, 1883
PLACE OF BIRTH Halle on the Saale
DATE OF DEATH May 28, 1969
Place of death Bonn