Title: Galileo, portrait of three astronomers, frontispiece from Dialogo...sopra i due Massimi Sistemi del Mondo, Tolemaico, e Copernicano (Dialogue concerning the Two Chief World Systems, the Ptolemaic and the Copernican), Florence, 1632
Original Format: photograph: negative
Description: The portrait by one of the ablest engravers of the time, Stephano Della Bella, depicts (left to right) Aristotle, Ptolemy and Copernicus earnestly discussing astronomical matters. The subject of their debate is represented by the armillary sphere which Ptolemy holds in his right hand, while Copernicus holds a representation of the new heliocentric system. An arrow, barely visible on the ground to the left of the publisher’s seal, points to Copernicus.
Collection: Rare Books
Caltech Archives ID: RB-GG1632-1