Il consigliere celeste della regina : a proposito dell'astrologia in John Dee.

In the early years of the scientific revolution John Dee (1527-1608), the heavenly adviser of Queen Elizabeth and her court, strives to renew astrology adapting it to the changes that are taking place in the scientific culture. The result is a new astrological text, the Propaedeumata aphoristica (London 1558), and a new science of heavenly virtues, processed according to mathematical analysis and experimental research, by analogy with the theory of light. The new theory of astral influences aims to perfect the practice, but ultimately confirms the limits of astrological prediction, evidenced by Ptolemy since antiquity. The astrologer will never get a total and definitive control of the dynamics governing the influence of the stars on human life.[Publisher's text]