François Mignard

François Mignard (born 1949) is a French astronomer and the director of the CERGA Observatory () of the Observatoire de la Côte d'Azur in southern France. He is an expert in space astrometry and Solar System dynamics, and played major roles in the European Space Agency's Hipparcos and ''Gaia'' missions. Mignard is an active member in several commissions of the International Astronomical Union and chairman of its working group that amends the standards for the International Celestial Reference System. Provided by Wikipedia