
In recent years, however, modern translations of one of Kepler's seminal works on the theory of how astrology works have appeared, which have been made available for the first time to English readers a perspective on what he really believed. Very few of Kepler's astrological works have been translated into English down the centuries, which has permitted a radically one-sided interpretation of his work to flourish. At the quatercentenary of his De Stella Nova of 1606 about the new star and his theories of how astrology worked, this seems an appropriate time to re-examine the achievement. The year 1987 saw the first visible supernova since Kepler's star of 1604.


Kepler's lifelong attempt to recast astrology within a harmonic-Pythagorean framework has relevance today.
