The Astronomical Observatories of Jai Singh c5.36

c5.36

⁴ Possibly 'Ali b. M. al-Saijid al-Sarif al-Gurgāni, who lived from A.D. 1339 to 1414 in Shirāz, and wrote a commentary on Naṣīr al-ūsi's *Tadkira* (See H. Suter's *Die Mathematiker und Astronomen der Araber und Ihre Werke*, p. 172); but Gurgāni was a designation of Ulugh Beg's family, and Ulugh Beg's tables were sometimes termed the Gurgāni canon [See L.P.E.A. Sédillot's *Prolégomènes des Tables astronomiques d'Oloug Beg*, p.c. xix; also *Ain-i-Akbari*, (iii) 20 and 41 (Jarrett's edition); *Akbarnāma*, (i), 204 (Beveridge's Edition).]