Astrolabe Catalogue


Date late 15th century
Place Italy
Material Brass
Inventory no. 45127
Acquisition Presented by Lewis Evans in 1924


. The throne, which was most probably a simple shackle or other suspension apparatus, has broken off and is now missing.


The womb is engraved as a tympan. There are no individual tympans for this instrument.
The womb contains 1 scales of the following types:
Type Range & Units Numbered Geometry Location
Degree 09010 - 1 Degrees of arc Every 10 degrees Circular, concentric None


Divisions Labelled Style
Divided every 3° from 0° to 90° Plain line.


Divisions Labelled Style
Divided every 15°  Plain line.


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


Type Labelled Description
Meridian line
Horizon rectus
Unequal hours Numbered (Numbers in Numbers, engraved script) (Modern), Plain line style.
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