Axel Nielsen
Encyclopedia
Axel Vilfred Nielsen was a Danish
astronomer
at the Ole Rømer Observatory in Aarhus from 1927 until his death in 1970.
In 1921, while still a student, Nielsen established his private observatory "Spica" in Glostrup. The observatory was located on the premises of a local enterprise, where Nielsen's father was employed as a manager. Axel V. Nielsen graduated in 1926 from the University of Copenhagen. In 1927 Nielsen was employed as an assistant with the Ole Rømer Observatory in Aarhus, later as head of section. The Ole Rømer Observatory had been established in 1911; in 1956 it was handed over to the University of Aarhus.
The crater Nielsen
on the Moon
is named after Axel V. Nielsen and the American physicist Harald Herborg Nielsen (1903-1973).
Nielsen published several books and articles on astronomy and the history of astronomy in Denmark. In 1944 he published a major work on the Danish astronomer Ole Rømer (1644-1710). Nielsen's publication record includes:
Axel V. Nielsen was the son of Peder Adolf Nielsen (1872-1962) and Caroline Marie Nielsen (1873-1937). He grew up with his two younger brothers, Holger Marius Nielsen
(1905-1993) and Povl Erik Nielsen (1909-1995) in Glostrup
, 10 kilometres west of Copenhagen.
Denmark
Denmark is a Scandinavian country in Northern Europe. The countries of Denmark and Greenland, as well as the Faroe Islands, constitute the Kingdom of Denmark . It is the southernmost of the Nordic countries, southwest of Sweden and south of Norway, and bordered to the south by Germany. Denmark...
astronomer
Astronomy
Astronomy is a natural science that deals with the study of celestial objects and phenomena that originate outside the atmosphere of Earth...
at the Ole Rømer Observatory in Aarhus from 1927 until his death in 1970.
In 1921, while still a student, Nielsen established his private observatory "Spica" in Glostrup. The observatory was located on the premises of a local enterprise, where Nielsen's father was employed as a manager. Axel V. Nielsen graduated in 1926 from the University of Copenhagen. In 1927 Nielsen was employed as an assistant with the Ole Rømer Observatory in Aarhus, later as head of section. The Ole Rømer Observatory had been established in 1911; in 1956 it was handed over to the University of Aarhus.
The crater Nielsen
Nielsen (crater)
Nielsen is a lunar impact crater on the Oceanus Procellarum. It is located north-east of Montes Agricola on the western hemisphere of the Moon. To the east-southeast is the crater Wollaston....
on the Moon
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...
is named after Axel V. Nielsen and the American physicist Harald Herborg Nielsen (1903-1973).
Nielsen published several books and articles on astronomy and the history of astronomy in Denmark. In 1944 he published a major work on the Danish astronomer Ole Rømer (1644-1710). Nielsen's publication record includes:
- Ole Rømers ”Dimensionstavle”, Nordisk Astronomisk Tidsskrift 1928, 30
- Ildkugler og Stjerneskud: Tidsskrift for Skole og Hjem. 2. Aarg. 8. Hft., Hellerup 1929
- The normal light curve, Astronomische Nachrichten, vol. 262, May 1937
- Hvornaar forelagde Ole Rømer sin Afhandling om Lysets Hastighed for Akademiet i Paris, NAT 1944, 60
- Ole Rømer. En Skildring af hans Liv og Gerning, København 1944
- Ole Rømers Triduum i det 18. århundredes astronomi, s. 205-223 i Vagn Dybdahl o.a.: Seksten Århusrids, Aarhus 1953
- Om iagttagelser af ildkugler, Aarhus 1958
- Helligtrekongersmindet astronomisk belyst, Aarhus 1959
- Hundrede års astronomi på Østervold, særtryk af Nordisk Astronomisk Tidsskrift 1961-62
- Ole Rømer-Observatoriet - dets oprindelse og dets første leder, Aarhus Stifts Årbøger, bind 55, Aarhus, 1962
Axel V. Nielsen was the son of Peder Adolf Nielsen (1872-1962) and Caroline Marie Nielsen (1873-1937). He grew up with his two younger brothers, Holger Marius Nielsen
Holger Marius Nielsen
Holger Marius Nielsen was an official of the Danish Ministry of Education.He was one of the editors of the Dictionary of the Danish Language , which was edited and published from 1919 till 1956...
(1905-1993) and Povl Erik Nielsen (1909-1995) in Glostrup
Glostrup
Glostrup Kommune is a suburban municipality and town in Region Hovedstaden on the island of Zealand approx. 10 km west of Copenhagen in eastern Denmark. The municipality covers an area of 13 km², and has a total population of 20,673 . Its Zip code is 2600...
, 10 kilometres west of Copenhagen.
Sources
- "E.S.": Spica-Observatoriet (stud. mag. Axel Nielsen), Glostrup, Nordisk Astronomisk Tidsskrift 1922, 114.
- XVth General Assembly - Transactions of the IAU Vol. XV B, Proceedings of the Fifteenth General Assembly and Extraordinary General Assembly, Sydney, Australia, August 21 - 30, 1973, Eds. G. Contopoulos & A. Jappel, Association of Univ. for Research in Astronomy, ISBN 90-277-0451-1, 1974
External links
- Ole Rømer Observatoriets Historie (In Danish)
- Lunar Photo of the Day: September 8, 2004
- københavnske observatorier (In Danish)
- http://www.lpi.usra.edu/resources/mapcatalog/LTO/lto38b2_4/
- http://www.lunarrepublic.com/atlas/sections/c2.shtml
- http://planetarynames.wr.usgs.gov/jsp/FeatureNameDetail.jsp?feature=64425