Adalbert Krueger

from Wikipedia, the free encyclopedia
Adalbert Krueger

Karl Nikolaus Adalbert Krueger , also Adalbert Krüger (born December 9, 1832 in Marienburg , † April 21, 1896 in Kiel ) was a German astronomer .

Life

Krueger studied in Berlin, where he was a member of the Corps Marchia . He began his scientific career in 1853 as an assistant and observer at the observatory in Bonn , where he worked on the Bonn survey of the starry sky, which was started by FWA Argelander . He received a professorship in astronomy . One of his students was his later son-in-law Heinrich Kreutz .

In 1862 he was appointed to the Helsingfors observatory , which he managed until 1876. From 1869 he participated in the zoning company of the Astronomical Society , measuring all the stars in a certain area of ​​the sky. Krueger took over the zone observations between the 55th and 65th degrees north declination. For this he used an eight-footed Reichenbach pass instrument .

In 1876 he followed a call to succeed Peter Andreas Hansen at the Gotha observatory, which had been orphaned since his death in 1874 . He was able to bring his previously used instrument with him and install it in the relatively new observatory on Jägerstrasse. From 1877 to 1878 he was supported by the assistant Andreas Severin Donner, who was also from Helsingfors and who was then replaced by Leo de Ball .

In the Gotha observatory, intensive observations were carried out and the results were later sent to the observatories as a catalog of 14,480 stars between 54 ° 55 'and 65 ° 10' north declination and in the two volumes zone observations of the stars between 55 and 65 degrees north declination Helsingfors and Gotha. Helsingfors published in 1883 and 1885 .

Krueger was elected chairman of the Astronomical Society in 1879 . In 1880 he was elected a member of the Royal Astronomical Society in London . In 1882 he was elected a member of the Leopoldina . Since 1877 he was a full member of the Royal Saxon Society of Sciences in Leipzig and since 1887 a corresponding member of the Prussian Academy of Sciences .

In 1880 Krueger left Gotha with the hint that he could not get along there with the low salary. He became professor of astronomy at the University of Kiel and director of the observatory there . Here he continued the publication of the Astronomische Nachrichten , one of the leading journals for astronomy at the time .

He died in Kiel on April 21, 1896.

He married Marie Argelander (1826–1917), the daughter of the astronomer Friedrich Argelander . Her daughter Else (1861–1940) married the astronomer Heinrich Kreutz .

literature

Web links

personal data
SURNAME Krueger, Adalbert
ALTERNATIVE NAMES Krueger, Karl Nikolaus Adalbert (full name); Kruger, Adalbert
BRIEF DESCRIPTION German astronomer
DATE OF BIRTH December 9, 1832
PLACE OF BIRTH Marienburg
DATE OF DEATH April 21, 1896
Place of death Kiel