Astrolabe Catalogue

 

Date late 16th century
Place Flanders
Material Brass
Inventory no. 45365
Acquisition Purchased from H. E. Backer in 1952

Rule, Regula, Pointer and Alidade Images

Alidade Image:

astrolabe part (photo)

Alidade Image:

astrolabe part (photo)

Rule Image:

astrolabe part (photo)

Rule Image:

astrolabe part (photo)

Rule

Appearance Tip Sights Pinholes Notches Description
Double-ended,  counter-changed,  original.  Decorative None None None

Scales


Type Range & Units Numbered Geometry Location
Declination 0 - 70 Degrees Every 10 degrees Linear Rule, left arm
Declination 0 - 25 Degrees Every 10 degrees Linear Rule, right arm

Alidade

Appearance Tip Sights Pinholes Notches Description
Double-ended,  counter-changed,  original.  Decorative Rigid Double None The bolt that secures the rete and the plates is integrated into the alidade.

Scales


Type Range & Units Numbered Geometry Location
Equal hours 2 - 12 Times of day Every 1 hours Linear Rule, right arm
Equal hours 1 - 10 Times of day Every 1 hours Linear Rule, left arm
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