- Giandomenico Cassini
- Jean-Dominique Cassini
Catholic astronomer, mathematician and engineer. He determined the period of rotation of Jupiter, Venus, and Mars, researched lunar librations and the zodiacal light, advanced a theory of cometary motion, discovered four Saturnian satellites, suggested oval paths in place of the ellipses of Kepler which were named Cassinians in his honor, and was first director of the Paris Observatory.
- “Giovanni Domenico Cassini”. . CatholicSaints.Info. 28 August 2010. Web. 25 May 2015. <http://catholicsaints.info/giovanni-domenico-cassini/>