LRI4632376 Double page of ??????Medicea Sidera??????or Pianeti Medicei (Planetes mediceennes), manuscript by the Italian astronomer and physicist Galileo Galilei dit Galilee (1564-1642) written for Cosimo de Medicis (Cosimo II de \'Medici) in which he exposes his discovery of the four satellites of Jupiter used successively to confirm his helioco entrism. 1610 Florence, Nazionale Biblioteca by Unknown Artist, (17th century); Biblioteca Nazionale Centrale, Florence, Italy; (add.info.: Double page of ??????Medicea Sidera??????or Pianeti Medicei (Planetes mediceennes), manuscript by the Italian astronomer and physicist Galileo Galilei dit Galilee (1564-1642) written for Cosimo de Medicis (Cosimo II de \'Medici) in which he exposes his discovery of the four satellites of Jupiter used successively to confirm his helioco entrism. 1610 Florence, Nazionale Biblioteca); Luisa Ricciarini; out of copyright.