Jean Picard
French astronomer · France · On the map · Scientists · Lived 1620 to 1682 · aged 61
Jean Picard was a French priest, astronomer and pioneer in geodesy, born in La Flèche, where he studied at the Collège royal Henri le Grand. He is best known for accurately measuring the size of the Earth, through a survey of one degree of latitude along the Paris Meridian.
Jean Picard is read about 38 times a day, in 31 languages.
A typical day, 30 days to 6 November 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 108 days, one point a day.
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About this person
Country
France
Category
Scientists
Type
Scientist
Status
Deceased
Dates
Lived 1620 to 1682 · aged 61
