Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version Image of the tympan or plate - click for larger version
Tympan 3b
Latitude 30°0'
The plate is labelled 36° but is, in fact, engraved for ca. 30°. The almucantars on this plate are particularly problematic, being both irregularly spaced and numbered.

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 لو Latitude 36° Latitude
ساعاته يد ب Hours 14h 02m Hours of daylight
المشرق East Direction
المغرب West Direction
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