Kazimierz Kordylewski (; born 11 October 1903 – 11 March 1981) was a Polish astronomer. He is known for his discovery of the Kordylewski clouds, two clouds of dust concentrated at the Moon's and Lagrange points.
Career
Kazimierz Kordylewski was born on 11 October 1903 in Poznań to Francizska and Władysław Kordylewski. He attended Saint Mary Magdelene High School, where he graduated in 1922, before studying for two years at the University of Poznań. He moved to the Jagiellonian University in 1924, and earned a PhD degree in 1932.
Kordylewski was employed at the astronomical observatory of the Jagiellonian University as a junior assistant, where he worked near-continuously until his retirement in 1974. He worked frequently with eclipsing variable stars, taking over 40,000 measurements of such stars throughout his life. In December 1925, while taking observations of the eclipsing variable S Corvi, Kordylewski discovered a previously unknown variable star. Further observations determined the star to be a Mira variable, whose very red color allowed it to escape prior detection on photographic plates.
Kordylewski married Jadwiga Pajak in 1929, and with her had four children.