Astrolabe Catalogue

 

Front of astrolabe without rete or plates. Click to enlarge
Date ca. 1300
Place Spain (?)
Material Brass
Inventory no. 45307
Acquisition Presented by J. A. Billmeir in 1957

Throne

The throne is of the moorish arch type . The throne is attached with a integrated base. In the shape of a fleur-de-lis with crouching lions either side, lightly engraved front and back.

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 other type (i.e. unusual or unique shackle). Moorish-arch style.

Mater

The mater and limb are of one-piece construction. . Scales on the limb:
Type Range & Units Numbered Geometry Location
Equal hours 1 - 12 Times of day  hours Circular, concentric edge
Degree 0 - 360 Degrees Every 10 degrees Circular, concentric None

Womb


Circles

Type Labelled Style Notes
Tropic of Cancer Plain line.
Tropic of Capricorn Plain line.
Equator Plain line.
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