Qāḍī Zāda al-Rūmī
Qāḍī Zāda al-Rūmī, whose actual name was Salah al-Din Musa Pasha, was a Turkish astronomer and mathematician who worked at the observatory in Samarkand. He computed sin 1° to an accuracy of 10−12.
Together with Ulugh Beg, al-Kāshī and a few other astronomers, Qāḍī Zāda produced the Zij-i-Sultani, the first comprehensive stellar catalogue since the Maragheh observatory's Zij-i Ilkhani two centuries earlier. The Zij-i Sultani contained the positions of 992 stars.His works
- Sharh al-Mulakhkhas
- Sharh Ashkal al-Ta'sis
