Astrolabes /
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Date | 1707/8 (A.H. 1119) |
Maker | ’Abd al-’Alī |
Place | Persia |
Material | Brass |
Inventory no. | 40330 |
Acquisition | Presented by Lewis Evans in 1924 |
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detailed provenance for this astrolabe
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, 180° from the throne.. Scales on the limb: degree scale. More informationBack
The back contains 16 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; Triplicities. The back is inscribed: with a maker's signature marked as العلي عبد صنعه (‘Abd al-‘Ali made this). More informationRete, Pin & Horse
The rete contains 1 stars. The zodiac on the rete is labelled: حمل , ثور , جوزا , سرطان , اسد , سنبله , ميزان , عقرب , قوس , جدي , دلو , حوت .The rete is inscribed with a date marked as: ١١١٩ (1119 A.H.).The rete is attached using a pin & horse. More information
Rules & Alidades
Type | Details |
---|---|
Alidade | Double-ended. The left sighting vane is bent slightly
toward the center.. |