Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version Image of the tympan or plate - click for larger version
Tympan 2b
Latitude 20°0'
The plate is labelled 29° but is, in fact, engraved for ca. 20°.

Almucantars

Divisions Labelled Style
Divided every 6° from 0° to 90° Labelled every 6° with   (Abdjad) numerals Plain 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 كط Latitude 29° Latitude
ساعاته يج يح Hours 13h 18m Hours of daylight
المشرق East Direction
المغرب West Direction
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