No free photograph
Daniel Chalonge
French astronomer (1895-1977) · France · On the map · Scientists · Died at 82
Daniel Chalonge was a French astronomer and astrophysicist. He was born in Grenoble and studied in Paris under Charles Fabry. Chalonge worked as an astronomer at the Observatoire de Paris, the Observatoire d'Haute Provence and the Swiss Jungfraujoch Scientific Station.
Daniel Chalonge is read about 2 times a day, in 10 languages.
A typical day, 30 days to 8 June 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.
Something wrong?Also in Français
Awards
About this person
One of the founders of the Institut d'astrophysique de Paris, his studies included the stellar spectrum of hydrogen, stellar photometry and classification, and measurement of the ozone layer. During the Nazi occupation of France, Chalogne assumed the position of director of the Institut d'astrophysique de Paris after the previous director, Henri Mineur, was arrested by the Gestapo. Chalonge developed a microphotometer, which was subsequently named after him. Between 1936 and 1982 he authored over 90 scientific papers.
The same award as Daniel
Count Aymar de la Baume PluvinelBoth received Janssen MedalAndré CouderBoth received Janssen MedalPaul BaizeBoth received Ladies' award of the Astronomical Society of FranceJean DelhayeBoth received Janssen Medal
Charles FehrenbachBoth received Ladies' award of the Astronomical Society of France