Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 2b
Composite plate for 30° and 36°.

Almucantars

Divisions Labelled Style
Divided every 2° from 0° to 90° Labelled every 2° with   (Abdjad) numerals Plain line.

Azimuths

Divisions Labelled Style
Divided every 10°  Labelled every 10° 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.
Equal hours from sunset Numbered (Numbers in Numbers, engraved script) (Abdjad), Dotted line style.

Inscriptions

Transcription Translation Type
العرض كج لو The latitude 36°. Latitude
العرض كج ل The latitude 30°. Latitude
ساعاته يد Hours 14h Hours of daylight
المشرق East Direction
المغرب West Direction
لمعرفت غروب السهيل For knowing the setting of the Canopus Miscellaneous
لمعرفت طلوع السهيل For knowing the rising of the Canopus Miscellaneous
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