Though not the general 's court astrologer per se , Kepler provided astronomical calculations for Wallenstein 's astrologers and occasionally wrote horoscopes himself .
In 1628 , following the military successes of the Emperor Ferdinand 's armies under General Wallenstein , Kepler became an official advisor to Wallenstein .
Though not the general 's court astrologer per se , Kepler provided astronomical calculations for Wallenstein 's astrologers and occasionally wrote horoscopes himself .
In 1628 , following the military successes of the Emperor Ferdinand 's armies under General Wallenstein , Kepler became an official advisor to Wallenstein .