Astrolabe Catalogue

 

Date 14th century
Place Europe
Material Brass
Inventory no. 47615
Acquisition Presented by J. A. Billmeir in 1957

Rule, Regula, Pointer and Alidade Images

Alidade Image:

astrolabe part (photo)

Alidade Image:

astrolabe part (photo)

Alidade

Appearance Tip Sights Pinholes Notches Description
Double-ended,  counter-changed,  original.  Gothic, simple Rigid Double None

Scales


Type Range & Units Numbered Geometry Location
Unequal hours 2 - 6 1/12 of daylight Every 1 hours Linear Rule, left arm
Unequal hours 2 - 6 1/12 of daylight Every 1 hours Linear Rule, right arm
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