The Astronomical Observatories of Jai Singh c6.s1.t1.17

c6.s1.t1.17

(vii) *Special Tablets.*—In the ordinary astrolabe the number of tablets varies to as many as nine—not counting the ‘ankabūt. Generally one is a special disc for horizons on one side and celestial co-ordinates on the other and occasionally there are other special tablets: the rest are the ordinary tablets, already described for several latitudes.