Reference Work Entry

Biographical Encyclopedia of Astronomers

pp 669-671


Esclangon, Ernest Benjamin

  • Jacques LévyAffiliated with 

BornMison, Alpes-de Haute-Provence, France, 17 March 1876

DiedEyrenville, Dordogne, France, 28 January 1954

Ernest Esclangon is often remembered for his contributions to applied physics during World War I and for his automated distribution of time signals by telephone.

Esclangon began his studies in a collège (school) in Manosque, his brother being a schoolmaster. He later attended the lycée (academy) in Nice before entering the École Normale Supérieure in Paris (1895). He received his degree in mathematics and secured a position at the Bordeaux Observatory in 1899 under Georges Rayet, which decided the fate of his career. There, Esclangon served as aide-astronome and astronom-adjoint. While in Bordeaux, he taught courses in rational mechanics as well as in differential calculus.

In 1919, Esclangon became director of the Strasbourg Observatory. With help from André Danjon, he revived the institution in the postwar period. Esclangon then succeeded Henri Deslandres as director of the Paris O ...

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