Concerning the More Certain Fundamentals of Astrology
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Johannes Kepler's work, Concerning the More Certain Fundamentals of Astrology (1601), aimed to reform astrology by grounding it in new physical and harmonic principles. While Kepler was a renowned astronomer who discovered the laws of planetary motion, he also sought to establish a more reliable theoretical foundation for astrology.12
Kepler believed that the universe operated on mathematical and harmonic principles, which he applied to both astronomy and astrology. He proposed that astrological influences were tied to specific harmonic angles of celestial rays hitting Earth. Despite his scientific rigor in astronomy, Kepler's approach to astrology integrated his cosmological ideas, reflecting the interconnectedness of scientific and philosophical thought in his era.213
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