Astrolabe Catalogue

 

Front of astrolabe without rete or plates. Click to enlarge
Date 14th century
Place Europe
Material Brass
Inventory no. 47615
Acquisition Presented by J. A. Billmeir in 1957

Throne

The throne is of the three-lobed type . The throne is attached with a integrated base. The bottom two lobes are semicircles.

Ring

The ring is of the simple, band type (i.e. the ring is made from a band of metal).

Shackle

Shackle of the omega type (i.e. Ω-shaped shackle). Affixed to the throne via a large pin.

Mater

The mater and limb are of two pieces, riveted construction. . Scales on the limb:
Type Range & Units Numbered Geometry Location
Degree 0 - 360 Degrees Every 5 degrees Circular, concentric outer

Womb


Lines

Type Labelled Description
Meridian line
Horizon rectus
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