Kees de Jager
Dutch astronomer
Cornelis "Kees" de Jager was a Dutch astronomer who specialized in predicting solar variation to assess the Sun's impact on future climate. He was the General Secretary of the IAU from 1967 to 1973 and former director of the observatory at... Wikipedia
Born: April 29, 1921, Den Burg, Netherlands
Died: May 27, 2021 (age 100 years), Den Burg, Netherlands