The Astronomical Observatories of Jai Singh c11.s2.t1.26

c11.s2.t1.26

Nari Valaya Yantra.—There are similar instruments, but much smaller, at Ujjain and Benares. The instrument at Jaipur is a masonry cylinder some 10 feet in diameter.¹ The axis of the cylinder is horizontal and in the plane of the meridian, and the parallel faces, which form the dials, are in the plane of the equator. The dials are graduated into ghaṭis and palas, and also hours and minutes. According to Garrett, the southern face was added by Jai Singh's grandson, Mahārāja Purṭāp Singh.