(1816–72; b. Lusigny-sur-Barse, France; d. Cherbourg, France)
French mathematician. Delaunay studied at the Sorbonne and taught at the École Polytechnique. His theory of lunar motion advanced the development of theories of planetary motion. He drowned in a boating accident. A street in Paris and a lunar crater are named after him.
Subjects: Probability and Statistics.