Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 5a
Latitude 39°0'
.

Almucantars

Divisions Labelled Style
Divided every 1° from 0° to 90° Labelled every 3° 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. This circle is marked with damascened silver.

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), Plain line style.
Equal hours from sunrise Numbered (Numbers in Numbers, engraved script) (Abdjad), Plain line style.

Inscriptions

Transcription Translation Type
لعرض لط لز For latitude 39° 37' Latitude
ساعاته يد ن Hours 14h40m Hours of daylight
المشرق East Direction
المغرب West Direction
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