Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 3a
This plate reproduces the information/scales normally found on the back of an instrument.

Inscriptions

Transcription Translation Type
Cor ♌ None
Occulus ♉ None
Spica ♍ None
Cor ♏ None

Scales


Type Range & Units Numbered Geometry Location
Zodiacal signs N/A Zodiacal divisions, equal or unequal Every 10  Circular, concentric n/a
Calendar N/A Every 10 and the end of the month  Circular, concentric n/a
Hour conversion 1 - 12 Times of day Every 1 hours Angle UR
Hour conversion 1 - 12 Times of day Every 1 hours Angle LL
Shadow square 1 - 12 Fingers Every 3 fingers Box LR
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