Antoine-Joseph Yvon Villarceau (15 January 1813 – 23 December 1883) was a French astronomer, mathematician, and engineer.

Yvon Villarceau
Villarceau in 1883, photographed by Eugène Pirou
Born	(1813-01-15)15 January 1813 Vendome, France
Died	23 December 1883(1883-12-23) (aged 70) Paris, France
Nationality	French
Alma mater	École Centrale Paris
Scientific career
Fields	Mathematics, astronomy, engineering
Institutions	Paris Observatory

He constructed an equatorial meridian-instrument and an isochronometric regulator for the Paris Observatory.

He wrote Mécanique Céleste. Expose des Méthodes de Wronski et Composantes des Forces Perturbatrices suivant les Axes Mobiles (Paris: Gauthier-Villars, 1881) and Sur l'établissement des arches de pont, envisagé au point de vue de la plus grande stabilité (Paris: Imprimerie Impériale, 1853).

He is the eponym of Villarceau circles, which are two circular sections of a torus other than the two trivial ones.

A short street in the 16th arrondissement of Paris is named after Villarceau.

References

• Debus, Allen G. (1968). World Who's Who in Science: A Biographical Dictionary of Notable Scientists from Antiquity to the Present. Chicago: Marquis-Who's Who. p. 1840.

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