Astrolabe Catalogue

Throne, Ring and Shackle

The throne is of the indo-persian, pierced type made of brass attached with integrated base made of brass and has a simple, round cross-section ring made of brass and trefoil type shackle made of brass . More information

Mater

The mater and limb are of one-piece construction. The tab to hold the tympans in place is located at the bottom of the instrument, that is 180° from the throne.. Scales on the limb: degree scale. More information

Back

The back contains 14 scales of the following types: Altitude; Sine/Cosine; Declination; Cotangent; Shadow square; Terms; Zodiacal signs; Faces; Triplicities; Lunar Mansions. More information

Rete, Nut & Bolt

The rete contains 42 stars. The zodiac on the rete is labelled: الحمل , الثور , الجوزا , السرطان , الاسد , السنبله , الميزان , العقرب , القوس , الجدي , الدلو , الحوت .
The rete is attached using a nut & bolt. A large wing nut affixes to the long bolt.. More information

Plates

There are 5 plates with latitudes ranging from 22°0' to 66°0' . More information