Jean Picard

Jean Picard (21 July 1620 – 12 July 1682) was a French astronomer and priest born in La Flèche, where he studied at the Jesuit Collège Royal Henry-Le-Grand.

This article is about the 17th-century French astronomer. For the bookbinder, see Jean Picard (bookbinder). For the chemist, professor and balloonist, see Jean Piccard. For the fictional character, see Jean-Luc Picard.
Jean Picard
Picard by Henri Testelin, c. 1680
Born(1620-07-21)21 July 1620
La Flèche, Kingdom of France
Died12 July 1682(1682-07-12) (aged 61)
Paris, Kingdom of France
NationalityFrench
OccupationAstronomer
Notable workMesure de la Terre

He is principally notable for his accurate measure of the size of the Earth, based on a careful survey of one degree of latitude along the Paris Meridian.

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