Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 2a
Latitude 23°0'
.

Almucantars

Divisions Labelled Style
Divided every 2° from 0° to 90° Labelled every 4° with   (Abdjad) numerals Plain line.

Azimuths

Divisions Labelled Style
Divided every 6°  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.
Equinoctial colure Plain line. Below the horizon, this line is dotted.

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
لعرض كج For latitude 23°. Latitude
ساعسته يج كد Hours 13h24m Hours of daylight
المشرق East Direction
المغرب West Direction
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