This article, part three of a series, delves into Arabic astrolabes, noting their historical significance in Islamic cultures from before the tenth to the nineteenth century. It describes their general characteristics, such as the use of Arabic scripts, the absence of equal hour scales, and the prominence of astrological scales. It also details specific features like thrones, retes, plates, and scales on the back, including shadow squares and sine/cosine grids.
Dials: Astrolabe,
Mathematics of Dialling,
Historical Dials