Astrolabe Catalogue

 

Front of astrolabe without rete or plates. Click to enlarge
Date 17th century (?)
Place Turkey
Material Brass
Inventory no. 53307
Acquisition Presented by J. A. Billmeir in 1957

Throne

The throne is of the simple type . The throne is attached with a integrated base. The throne is composed of two pieces: the front is integral with the limb and the back, which is an extension of the back plate..

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 two pieces, soldered construction. . Scales on the limb:
Type Range & Units Numbered Geometry Location
Degree 0 - 90 Degrees of arc Every 5 degrees Circular, concentric None

Womb


The womb is plain except for a set of perpindicular lines..

Lines

Type Labelled Description
Meridian line
Horizon rectus
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