Dome Cappella Chigi, Santa Maria del Popolo (Rome)

At the center of the dome, God the Father appears in a dramatic foreshortened view, surrounded by eight panels representing the seven classical planets and the fixed stars. Each celestial body is personified by a mythological deity accompanied by a winged angel who serves as the divine 'Intelligence' or mover of that specific sphere. The composition is viewed from below, creating the illusion of looking through the architecture into the highest reaches of the cosmos.

This iconographic program represents a sophisticated synthesis of Christian theology, Ptolemaic astronomy, and Neoplatonic philosophy. It visualizes the Renaissance belief—articulated by thinkers like Marsilio Ficino—that the heavens are structured as a series of concentric spheres guided by divine intelligences, bridging the gap between natural philosophy and spiritual revelation.