in 1948 and Norwegian Academy of Technological Sciences which was founded during 1955. He was also the driving force behind the creation of Harestua Solar Observatory located at Gunnarshaugen in Oppland, which was inaugurated in 1954. Rosseland was Norwegian delegate to the CERN Council in the early days of the organization. Legacy In 1957 he was decorated Commander of the Royal Norwegian Order of St. Olav. The minor planet 1646 Rosseland and the lunar crater Rosseland are named after him, as is the Rosseland mean opacity. The Institute of Theoretical Astrophysics at the University of Oslo is housed in "Svein Rosseland's House". In honor of the 100th anniversary of his birth, the Svein Rosseland Centenary Symposium was held at the Norwegian Academy of Science and Letters in Oslo during June 1994. A bust of him was also erected at Steinsdalsfossen near his home in Norheimsund. Selected works On the Internal Constitution of the Stars, 1925 The Principle of Quantum Theory, 1930 On the Stability of Gaseous Stars, 1931 Astrophysik auf atomtheoretischer Grundlage, 1931 Theoretical Astrophysics, 1936 Jorda og universet. Matematisk geografi, 1940 The Pulsation Theory of Variable Stars, 1949 Notes References Randers, G. Svein Rosseland 50 År ( Norsk Populær-Astronomisk Tidsskrift, vol. 3, pp. 33–35, 1945) Randers, G. Rosseland, Svein (Norwegian Biographical Lexicon, vol. 12, pp. 1–2, 1946) Randers, G. and M. Schwarzschild Professor Svein Rosseland (Astrophysics Norvegica, vol. 9, pp. 7–9, 1964) Elgarøy, Ø. and Ø. Hauge, Svein Rosseland. Fra hans liv og virke (Institute of Theoretical Astrophysics, Univ. of Oslo, 1994) Holst, Per A. Svein Rosseland and the Oslo Analyzer (IEEE Annals of the History of Computing 18(4):16-26, 1996) External links Institutt for Teoretisk Astrofysikk Solobservatoriet på Harestua Image of Svein Rosseland Svein Rosselands hus 1894 births 1985 deaths People from Kvam People associated with CERN Norwegian astronomers 20th-century astronomers Rockefeller Fellows Members of the Norwegian Academy of Science and Letters Members of the Norwegian Academy of Technological Sciences Members of the Royal Swedish Academy of Sciences