Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 3a
Latitude 50°0'
Again, construction marks, poorly engraved east-west line and a number of almacantars are poorly engraved. One of the azimuths was incorrectly placed and then re-engraved in the correct location. Construction dots below equator..

Almucantars

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

Azimuths

Divisions Labelled Style
Divided every 10°  Plain line.

Circles

Type Labelled Style Notes
Tropic of Cancer None line.
Equator None line.
Tropic of Capricorn None line.

Lines

Type Labelled Description
Meridian line
Horizon obliquus
Unequal hours
Crepuscule
Other

Inscriptions

Transcription Translation Type
L' 50 Latitude
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