Florentine Francesco Sizzi wrote Dianoia Astronomica, a pedantic response to Galileo Galilei’s Sidereus Nuncius. Sizzi argued that the Galilean satellites could not exist, because they would cause the quantity of “planets” to exceed the favored number seven.
- Drake, Stillman (1970). “Sunspots, Sizzi, and Scheiner.” In Galileo Studies: Personality, Tradition, and Revolution, pp. 177–199. Ann Arbor: University of Michigan Press.Google Scholar