Picard, Jean

Picard, Jean

Picard, Jean, 1620-82, French astronomer, noted for having made the first accurate measurement of a degree of the earth's meridian. The figures he established were of great value to Newton in his calculation of the force of gravitation. Picard, who had previously been the prior of Rillé, in Anjou, went to Paris to occupy the chair of astronomy in the Collège de France in 1655. He determined (1671) the latitude and longitude of Tycho Brahe's observatory at Ven (now Landskrona, Sweden) in order to be able to use Brahe's observations of the positions of heavenly bodies. To him is due in great part the establishment of the Paris Observatory and of the Connaissance des temps, the first five volumes (1679-83) of which he wrote.
Picard may refer to

People known as Picard

Picard, meaning a person from Picardy, a historical region and cultural area of France, is a surname, and may refer to:

See also

  • Picard group, a mathematical object describing the self-isomorphisms of a ringed space
  • Berger Picard, French breed of dog of the herding group of breeds
  • A person from Picardie, a modern region of France and an old province of France of the same name
  • A member of the Picards, a religious sect in the fifteenth century
  • MusicBrainz Picard, a cross platform tagger for MusicBrainz database
  • The Picard Topology, or Picard horn, a cone shaped formation that represents the 'shape' of the universe according to the Wilkinson Microwave Anisotropy Probe
  • Picard, an alternative name for the wine grape Merille
  • The PICARD (spacecraft) mission, an orbiting solar observatory built by CNES
  • Les Fatals Picards, a French band
  • Captain Picard, Captain of the USS Enterprise-D/E in the TV show Star Trek.

See also

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