Astrolabe Catalogue

 
astrolabe, inventory number 54424 from Europe, early 17th century
thumbnail for astrolabe (front), inventory number 54424 from Europe, early 17th century
thumbnail for astrolabe (back), inventory number 54424 from Europe, early 17th century
thumbnail for astrolabe (rete front), inventory number 54424 from Europe, early 17th century
Dateearly 17th century
PlaceEurope
MaterialBrass
Inventory no.54424
AcquisitionPresented by J. A. Billmeir in 1957

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Throne, Ring and Shackle

The throne is of the compass bearing type made of brass with s-shaped scroll work support(s) made of brass attached with integrated base made of brass and has a simple, round cross-section ring made of brass and other type shackle made of brass . More information

Mater

The mater and limb are of two pieces, soldered and riveted construction. Large sighting vanes on the horizontal axis, screwed to the outer edge of the limb, with slotted sights. Scales on the limb: More information

Back

The back contains 1 scales of the following types: Degree. The universal on the back contains 1 scales. More information

Rete, Nut & Bolt

The rete contains 19 stars. The zodiac on the rete is labelled: Aries ♈ , Tavrvs ♉ , Gemini ♊ , Cancer ♋ , Leo ♌ , Virgo ♍ , Libra ♎ , Scorpivs ♏ , Sagittarivs ♐ , Capricornvs ♑ , Aqvarivs ♒ , Pisces ♓ .
The rete is attached using a nut & bolt. simple threaded pin with square nut. More information

Plates

There are 3 plates with latitudes ranging from 38°0' to 41°0' . More information

Rules & Alidades

Type Details
AlidadeDouble-ended, counter-changed. counter-changed with simple blunt pointers that were probably actual pointers at one time -- they show signs of having been filed off blunt..
More information

 

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