Astrolabe Catalogue

 

Front of astrolabe without rete or plates. Click to enlarge
Date 1634/5 (A.H. 1044)
Maker Qā’im Muḥammad ibn ‘Īsa
Place Lahore
Material Brass
Inventory no. 42730
Acquisition Presented by Lewis Evans in 1924

Throne

The throne is of the indo-persian, pierced type . The throne is attached with a integrated base. As with many pierced Indo-Persian thrones, the lattice work is decorated with foliate engravings.

Ring

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

Shackle

Shackle of the trefoil type. This is another example of an open trefoil 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 - 360 Degrees of arc Every 5 degrees Circular, concentric None

Womb


Contains a gazetteer listing longitude and latitude.
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