Astrolabe Catalogue

 

Front of astrolabe without rete or plates. Click to enlarge
Date 1707/8 (A.H. 1119)
Maker ’Abd al-’Alī
Place Persia
Material Brass
Inventory no. 40330
Acquisition Presented by Lewis Evans in 1924

Throne

The throne is of the indo-persian, engraved type . The throne is attached with a integrated base. The front is embossed with a Qur'anic quotation. The back is decorated with a foliate design. Markings:
Content Translation Notes Type
وسع كرسيه السماوات والأرض His throne extends over the heavens and the earth. Qur'anic verse


Ring

The ring is of the simple, round cross-section type (i.e. simple plain ring made from a round rod or piece of metal).

Shackle

Shackle of the omega type (i.e. Ω-shaped shackle). .

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:
Type Range & Units Numbered Geometry Location
Degree 0 - 90 Degrees of arc Every 5 degrees Circular, concentric None

Womb


Contains a gazeteer..
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