Astrolabes /
Browse / 46886
Date | ca. 1660 |
Maker | Muḥammad Mahdī |
Place | Persia |
Material | Brass |
Inventory no. | 46886 |
Acquisition | Presented by J. A. Billmeir in 1957 |
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detailed provenance for this astrolabe
Mater
The mater and limb are of one-piece construction. The tab that holds the tympans in place is located at the bottom of the instrument, 180° from the throne. Scales on the limb: degree scale.The limb is inscribed: with a marked as [along edge]. FARM OUT. More information
Back
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 نمقه محمد مهدي ابن محمد أمين البزدي (Embellished by Muḥammad Mahdī son of Muḥammad Amīn al-Yazdī.). In a cartouche. with a miscellaneous marked as غرض نقشيست كه تا باز ماند (The aim of the engraving is that it should remain after me.). At bottom edge. More informationRete, Pin & Horse
The rete contains 0 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 latitude marked as: [along tropic of capricorn]. [ pending ].The rete is attached using a pin & horse. A simple pin and horse, neither of which is decorated. More information