Ad principem Franciscum Estensem … de Cometa anni 1652 & 1653.
Modena: Bartolomeo Soliani, 1653. First edition, exceptionally rare, of the remarkable first publication of the great observational astronomer Gian Domenico Cassini, in which he demonstrated for the first time by observing their parallax that comets are celestial phenomena and not, as Aristotle had claimed, ignited exhalations from the earth (the..... More
Item #5203