Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version Image of the tympan or plate - click for larger version
Tympan 1b
Latitude 28°0'
The plate is labelled 32° but is, in fact, engraved for ca. 28°.

Almucantars

Divisions Labelled Style
Divided every 6° from 0° to 90° Labelled every 6° with   (Abdjad) numerals Plain line.

Azimuths

Divisions Labelled Style
Divided every 10°  Labelled every 10° with   (Abdjad) numerals None line.

Circles

Type Labelled Style Notes
Equator Plain line.
Tropic of Cancer Plain line.
Tropic of Capricorn Plain line.

Lines

Type Labelled Description
Meridian line
Horizon rectus
Unequal hours Numbered (None in Numbers, engraved script) (Abdjad), Plain line style.

Inscriptions

Transcription Translation Type
عرص لب Latitude 32° Latitude
ساعاته يد كج Hours 14h 23m Hours of daylight
المشرق East Direction
المغرب West Direction
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