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Jacques Henrard (4 July 1940 – 21 March 2008) was a Belgian mathematician and astronomer.

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Early life and education
Jacques Henrard was born in Leopoldville (presently Kinshasa) in the Belgian Congo. He was the third child (out of four) of an agronomist, Jean Henrard. He spent the first six years of his life in Africa.

He joined the Catholic University of Louvain at Leuven in September 1959. He was awarded a bachelor degree in mathematics and physics in 1961 and a master degree in mathematics in 1963. André Deprit (1926-2006) was the supervisor of his master thesis entitled Doubly Asymptotic Orbits in the Planar Restricted Three Body Problem.

The title of his PhD thesis was General Solution in the vicinity of the colinear equilibria of the restricted problem.

Academic career
He was appointed permanent professor at the mathematics department of the University of Namur in 1971 and ordinary professor in 1974. He retired in 2005.

As a university professor he was teaching mechanics, dynamical systems, perturbation theory, astronomy and analysis. He was the director of ten PhD thesis.

Honors and prizes
He received the Belgian prise Agathon de Potter for his work covering the period 1982-1985.

An asteroid of the main-belt was named after him: 6122 Henrard (1987 SW1).