Astrolabe Catalogue


Front of astrolabe without rete or plates. Click to enlarge
Date 1521
Place Germany
Material Brass
Inventory no. 47657
Acquisition Presented by Lewis Evans in 1924


The throne is of the three-lobed type . The throne is attached with a integrated base. The lower two lobes are decorated with 5-pedalled flowers. The upper lobe is similarly decorated with a floral engraving.


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 of the eye-bolt type (i.e. any shackle that attactes to the ring via an eye-bolt type feature). The rotating eye-bolt is attached to an ∩-shaped shackle that attaches to the throne via a pin.


The mater and limb are of one-piece construction. The edge of the limb has been scored and a thick brass wire has been placed in the resulting grove. Scales on the limb:
Type Range & Units Numbered Geometry Location
Equal hours 1 - 24 Times of day Every 1 hours Circular, concentric outer
Degree 0 - 360 Degrees Every 5 degrees Circular, concentric outer2


The womb contains 1 scales of the following types:
Type Range & Units Numbered Geometry Location
Table of Horizons 16 - 63 Degrees Each one degrees None None
The womb is inscribed:
Content Translation Notes Type
1521 1521 Date


Type Labelled Style Notes
Equator Plain line.


Type Labelled Description
Meridian line
Horizon rectus
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