Astrolabe Catalogue


Front of astrolabe without rete or plates. Click to enlarge
Date ca. 1500
Place Italy (?)
Material Brass
Inventory no. 35146
Acquisition Presented by Lewis Evans in 1924


The throne is of the three-lobed type . The throne is attached with a screwed base. Unadorned.


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 eye-bolt is attached to the throne via a threaded screw.


The mater and limb are of two pieces, soldered construction. . Scales on the limb:
Type Range & Units Numbered Geometry Location
Degree 0 - 360 Degrees Every 5 degrees Circular, concentric outer
Equal hours 2 - 22 1/24 of daylight Every 1 hours Circular, concentric None


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