Analyzing Observational Data and Planetary Analyzing Observational Data and Planetary Parameters of Muḥyī al-Dīn al-Maghribī in Maragha Observatory (Case Study of Structural Parameters of Saturn’s Orbit) Journal title: تاریخ و فرهنگ Authors: Sayyid MuḥAmmad MuẓAffarī, GholamHosein Rahimi Subject(s):