Kazimierz Kordylewski

Kazimierz Kordylewski
Kordylewski in 1964
Born(1903-10-11)11 October 1903
Poznań, German Empire
Died11 March 1981(1981-03-11) (aged 77)
Kraków, Poland
NationalityPolish
Alma materUniversity of Poznań
Jagiellonian University
Known forDiscovery of the Kordylewski clouds
SpouseJadwiga Pajakówna
Children4
AwardsOrder of Polonia Restituta (1979)
Scientific career
FieldsAstronomer

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 L4 and L5 Lagrange points.

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.[1][2]

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.[2]: 195–196  The next year, he discovered the nova T Corvi.[1]

Starting in 1951, Kordylewski began searching for trojan satellites in the Moon's L4 (leading) and L5 (trailing) points.[1] In 1956, he claimed the discovery of the Kordylewski clouds, large transient concentrations of dust at the Trojan points of the Earth–Moon system, which were reported to have been confirmed to exist in October 2018.[3][4][5]

Kordylewski married Jadwiga Pojak in 1929, and with her had four children.[1] He died suddenly on 11 March 1981 in Kraków, Poland.[2]: 201 

See also

References

  1. ^ a b c d Hockey, Thomas (2009). The Biographical Encyclopedia of Astronomers. Springer Publishing. ISBN 978-0-387-31022-0. Retrieved 22 August 2012.
  2. ^ a b c Kreiner, Jerzy M. (2000). Bolesław, Szafirski (ed.). KAZIMIERZ KORDYLEWSKI (1903-1981) (in Polish). Księgarnia Akademicka. ISBN 83-7188-326-9.
  3. ^ Royal Astronomical Society (26 October 2018). "Earth's dust cloud satellites confirmed". EurekAlert!. Archived from the original on 27 October 2018. Retrieved 27 October 2018.
  4. ^ Slíz-Balogh, Judit; Barta, András; Horváth, Gábor (11 November 2018). "Celestial mechanics and polarization optics of the Kordylewski dust cloud in the Earth–Moon Lagrange point L5 – I. Three-dimensional celestial mechanical modelling of dust cloud formation". Monthly Notices of the Royal Astronomical Society. 480 (4): 5550–5559. arXiv:1910.07466. doi:10.1093/mnras/sty2049.
  5. ^ Slíz-Balogh, Judit; Barta, András; Horváth, Gábor (1 January 2019). "Celestial mechanics and polarization optics of the Kordylewski dust cloud in the Earth–Moon Lagrange point L5 – Part II. Imaging polarimetric observation: new evidence for the existence of Kordylewski dust cloud". Monthly Notices of the Royal Astronomical Society. 482 (1): 762–770. arXiv:1910.07471. doi:10.1093/mnras/sty2630.