Astrolabe Catalogue


Front of astrolabe without rete or plates. Click to enlarge
Date 1609
Maker Johann Krabbe
Place Germany
Material Wood
Inventory no. 44745
Acquisition Presented by Lewis Evans in 1924


The throne is of the three-lobed type . The throne is attached with a integrated base. Both the front and the back of the throne have been covered with paper. Likewise, the edge of the throne is covered in paper. The paper id decorated with a eight-petalled flower. The back is decorated with a six-leafed design..


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


Shackle of the eye-bolt type (i.e. any shackle that attactes to the ring via an eye-bolt type feature)made of brass. .


The mater and limb are of two pieces, nailed construction. Both the front and edge of the limb are covered by the paper paste-down.. Scales on the limb:
Type Range & Units Numbered Geometry Location
Equal hours 1 - 12 Times of day Every 1 hours Circular, concentric outer
Equal hours 0 - 60 Times of day Every 10 minutes hours Circular, concentric outer2


In the womb is a piece of paper that has been pasted down. Perpindicular lines meet at the center..
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