Arnold Kohlschütter

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

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

Kohlschütter heard as a student lectures by Karl Schwarzschild in Göttingen. There was also a 1906 Wizard. In 1908 he went to Kiel and 1909 to Bergedorf near Hamburg. From 1911 to 1914 Kohlschütter astronomer at the Mount Wilson Observatory and from the year 1918 was an assistant at the Astrophysical Observatory Potsdam. From the year 1919 he was there and Observer from 1923 Hauptobservator. Since 1920 he has held the position of lecturer at the University of Berlin and was established in 1925 professor at the University and director of the observatory in Bonn. There he devoted himself to the astrometric projects such as the Bonn part of AGK2.