Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 4a
Composite plate for 24° and 66°..

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 (Numbers in Numbers, engraved script) (Abdjad), Plain line style.

Inscriptions

Transcription Translation Type
عرض كد Latitude 24° Latitude
عرض سو Latitude 66° Latitude
ساعسته يج لا Hours 13h31m Hours of daylight
[along rim] None
المشرق East Direction
المغرب West Direction
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