Astrolabe Catalogue

Throne, Ring and Shackle

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

Mater

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

Back

The back contains 15 scales of the following types: Altitude; Declination; Azimuth of Qibla; Altitude of noon sun; Sine/Cosine; Cotangent; Terms; Zodiacal signs; Faces; Lunar Mansions; Shadow square. The back is inscribed: with a maker's signature marked as صنعه محمد طاهر (Made by Muḥammad Ṭāhir). In cartouche below shadow square. with a maker's signature marked as نمقه عبد الائمة (Embellished by ʿAbd al-Aʾimmah). In cartouche at bottom rim. More information

Rete, Pin & Horse

The rete contains 0 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 pin & horse. The pin is missing. The horse is a replacement. More information

Plates

There are 4 plates with latitudes ranging from 25°0' to 38°0' . More information

Rules & Alidades

Type	Details
Alidade	Double-ended. The rule is not original.

More information