Adalbert Krüger
Adalbert Nicholas Carl Kruger ( born December 9, 1832 in Marienburg, † April 21, 1896 in Kiel ) was a German astronomer.
Life
Krüger studied in Berlin, where he was a member of the Corps Marchia. His academic career began in 1853 as an assistant and Observer at the Observatory at Bonn, where he worked on the begun by Argelander Bonn survey of the sky. He became Professor of Astronomy. One of his students was his future son- Heinrich Kreutz.
In 1862 he was appointed to the observatory Helsingfors, which he headed until 1876. Here he took part from 1869 to the zone enterprise of the Astronomical Society, surveying all stars of a given sky area. Kruger took over the zone observations between the 55th and 65th degree of north declination. To this end he began a achtfüßiges Reichenbach cal passage instrument.
In 1876 he accepted an appointment as successor Peter Andreas Hansen since his death in 1874 at the orphaned observatory Gotha. He was able to bring his most used tool and install it in the still relatively new observatory in the Hunter Street. From 1877 to 1878 he was supported by the coming also from Helsingfors wizard Andreas Severin thunder, which was subsequently replaced by Leo de Ball. In the observatory Gotha was now being closely monitored and the results later as a catalog of 14 480 stars between 54 ° 55 ' and 65 ° 10 ' north declination and northerly in the two volumes zone observations of stars between 55 and 65 degrees declination made at the observatories to Helsingfors and Gotha. Helsingfors in 1883 and 1885 published.
Kruger was in 1879 elected president of the Astronomical Society. In 1880 he was elected Fellow of the Royal Astronomical Society in London.
1880 left Kruger Gotha with the note to be been able to do there with the low content. He was professor of astronomy at the University of Kiel and director of the local observatory. Here he continued the publication of the Astronomische Nachrichten, one of the then leading journals of astronomy, continued.
He died on 21 April 1896 in Kiel.