Based on a newly edited and translated Arabic version of Ptolemy’s Planetary Hypotheses, Paul Hullmeine’s study explores crucial yet often overlooked cosmological aspects of this fundamental text and shedding new light on it. The book is the published version of a doctoral thesis defended at the Ludwig-Maximilians-Universität in Munich in 2021, carried out within the … Continue reading Ptolemy’s cosmology in Greek and Arabic. The background and legacy of the Planetary Hypotheses