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  1. Between doubts and certainties: on the place of history of science in Islamic societies within the field of history of science.Sonja Brentjes - 2003 - NTM Zeitschrift für Geschichte der Wissenschaften, Technik und Medizin 11 (2):65-79.
    I discuss my long-term observation that history of science in Islamic societies is marginalized within the general history of science community as well as in the academic world of Islamic studies, Near Eastern language and civilization programs, Middle Eastern history, or the investigation of the modern Muslim world. I ask what the possible causes for this situation are and what can be done to change the bleak situation.
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  • Holding or Breaking with Ptolemy's Generalization: Considerations about the Motion of the Planetary Apsidal Lines in Medieval Islamic Astronomy.S. Mohammad Mozaffari - 2017 - Science in Context 30 (1):1-32.
    ArgumentIn theAlmagest, Ptolemy finds that the apogee of Mercury moves progressively at a speed equal to his value for the rate of precession, namely one degree per century, in the tropical reference system of the ecliptic coordinates. He generalizes this to the other planets, so that the motions of the apogees of all five planets are assumed to be equal, while the solar apsidal line is taken to be fixed. In medieval Islamic astronomy, one change in this general proposition took (...)
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  • Planetary latitudes in medieval Islamic astronomy: an analysis of the non-Ptolemaic latitude parameter values in the Maragha and Samarqand astronomical traditions.S. Mohammad Mozaffari - 2016 - Archive for History of Exact Sciences 70 (5):513-541.
    Some variants in the materials related to the planetary latitudes, including computational procedures, underlying parameters, numerical tables, and so on, may be addressed in the corpus of the astronomical tables preserved from the medieval Islamic period, which have already been classified comprehensively by Van Dalen. Of these, the new values obtained for the planetary inclinations and the longitude of their ascending nodes might have something to do with actual observations in the period in question, which are the main concern of (...)
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  • A forgotten solar model.S. Mohammad Mozaffari - 2016 - Archive for History of Exact Sciences 70 (3):267-291.
    This paper analyses a kinematic model for the solar motion by Quṭb al-Dīn al-Shīrāzī, a thirteenth-century Iranian astronomer at the Marāgha observatory in northwestern Iran. The purpose of this model is to account for the continuous decrease of the obliquity of the ecliptic and the solar eccentricity since the time of Ptolemy. Shīrāzī puts forward different versions of the model in his three major cosmographical works. In the final version, in his Tuḥfa, the mean ecliptic is defined by an eccentric (...)
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