The Astronomical Observatories of Jai Singh c8.2

c8.2

Morley describes two other Hindu astrolabes, one belonging to the Royal Asiatic Society, and the other to the India Office.¹ (1) That belonging to the Royal Asiatic Society is a bipartite instrument, and appears to contain one disc only for latitude 24°N. The ‘ankabūt has 23 points with the names of stars engraved thereon. The back has the table of sines and the shadow scales. (2) The India Office instrument is said to be of poor workmanship. It is a sexpartite instrument, 3 inches in diameter. Within the *umm* is a table of 16 Indian cities, with latitudes and longitudes, the latter reckoned from the ‘Fortunate Isles,’ e.g.—