The Astronomical Observatories of Jai Singh c15.s2.4

c15.s2.4

With Ulugh Beg, the grandson of Tamerlane, the study of scientific astronomy throughout the Islāmic world ceased. He founded a large observatory at Samarqand, to which he summoned such renowned astronomers as Jamshid al-Kāshī (mentioned by Jai Singh), Kāḍī Zāde, al-Rūmī, ‘Alī al-Qūsjī, and others. He undertook a complete revision of the catalogue of the stars—based upon direct observation—and himself wrote a preface to the tables, a few months before he perished by an assassin's hand. Jai Singh professedly followed Ulugh Beg in his astronomical work.