Figure 1: An armillary sphere in Ma'rifatname of Ibrahim Hakki Erzurumi. Adapted from the original manuscript held in the Suleymaniye Library in Istanbul, Haci Mahmud collection, MS 5616, fol. 1b.
The Armillary Sphere: A Concentrate of Knowledge in Islamic AstronomyLEARN MORE
The armillary sphere is an ancient astronomical instrument...