The Astronomical Observatories of Jai Singh c17.5

c17.5

We know that Jai Singh possessed at least some of works of Ptolemy, Ulugh Beg, P. de la Hire, J. Flamsteed, and also certain European astronomical tables and mathematical text-books. He had Ptolemy's *Almagest* translated into Sanskrit, and a text on the astrolabe compiled, and he brought up to date Ulugh Beg's celebrated catalogue of stars. The instruments themselves are evolved from the types used by the Muslims, and Jai Singh's inspiration was avowedly of Muslim origin.