Astrolabe Catalogue

 

Front of astrolabe without rete or plates. Click to enlarge
Date ca. 1400
Place Europe
Material Brass
Inventory no. 52869
Acquisition Presented by J. A. Billmeir in 1957

Throne

The throne is of the simple type . The throne is attached with a integrated base. The throne is merely a tab that extends from the limb so that the shackle can be attached.

Ring

The ring is of the simple, squared cross-section type (i.e. a simple ring made from a round rod or piece of metal).

Shackle

Shackle of the omega type (i.e. Ω-shaped shackle). .

Mater

The mater and limb are of two pieces, soldered and riveted construction. . Scales on the limb:
Type Range & Units Numbered Geometry Location
Equal hours 1 - 12 Times of day Every 1 hours Circular, concentric outer

Womb


The womb bears a Saphea Azarchelis universal projection.


Universal

Universal with Azarquiel/Saphea/Gemma Frisius projection. The universal contains the following:
Angle of inclination Direction of inclination Labelled Language Script Line style Notes
Ecliptic 23 Top-left/bottom-right Signs of the zodiac Latin Gothic Plain
The universal contains the following meridians:
Interval Style of line Number style Description
Plain European Gothic
The universal contains the following parallels:
Range Interval Style of line Number style Description
  Plain N/A

The universal contains scales of the following types:
Type Range & Units Numbered Geometry Location
Degree 0 - 90, Degrees Every 6 degrees Circular, concentric Around the perimeter of a universal. Frequently, this is a degree scale
Zodiacal signs 0 - 30, Zodiacal divisions, equal or unequal Not numbered  Linear On the ecliptic of a universal projection
More information

Stars

The universal contains the following stars. Click on the star name or modern star name to search for other astrolabes with the same star.
Star name
(on instrument)
Modern star
(if known)
Mediation Declination Pointer
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