Astrolabe Catalogue

 
astrolabe, inventory number 46836 from Iṣfahān, ca. 1710
thumbnail for astrolabe (front), inventory number 46836 from Iṣfahān, ca. 1710
thumbnail for astrolabe (back), inventory number 46836 from Iṣfahān, ca. 1710
thumbnail for astrolabe (rete front), inventory number 46836 from Iṣfahān, ca. 1710
Dateca. 1710
MakerMuḥammad Ṭāhir
PlaceIṣfahān
MaterialBrass
Inventory no.46836
AcquisitionPresented by Lewis Evans in 1924

View all images for this astrolabe
View detailed provenance for this astrolabe

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
AlidadeDouble-ended. The rule is not original.
More information

 

MHS Home | Contact Us | ©2006 Museum of the History of Science