Background
Delaware, Comelis was born on April 29, 1921 in Den Burg, Texel. Son of January de Jager and Cornelia Kuyper.
Delaware, Comelis was born on April 29, 1921 in Den Burg, Texel. Son of January de Jager and Cornelia Kuyper.
University of Utrecht.
Assistant in theoretical physics, University of Utrecht 1946. Assistant in Astronomy, University of Leiden. Assistant Astronomical Institute, Utrecht.
Association Professor, of Stellar Astrophysics, University of Utrecht 1957, Ordinary Professor, in General Astrophysics 1960-1986.
Extraordinary Professor, University of Brussels and founder, Space Research Laboratory, Utrecht and Astronomical Institute, Brussels 1961.
Manager Director Utrecht Astronomical Institute 1963-1978. Chairman Institute Council 1978-1983.
Assistant General Secretary Institute Astronomical
Union 1967-1970, General Secretary 1970-1973. President Netherlands Astronomical Commission 1975-1983.
Executive Council Committee on Space Research (COSPAR) 1970-1972, President 1972-1978, 1982-1986.
Executive Council, 1CSU 1970-1982, Vice-President 1976-1978, President 1978-1980. Aggregate Professor, University of Brussels 1970-1986.
Chairman Basic Sciences Section 1984.
Royal Netherlands Academy, of Art and Sciences, Foreign Secretary since 1985. Royal Belgium Academy, of Art and Sciences. Academy Europe; Royal Astronomical
Society (London).
Society Royale de Science, Liege. Institute Academy Astronautics. Deutsche Akademie Leopoldina, Halle.
Married Duotsje Rienks in 1947.