Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 1a
Latitude 38°0'
.

Almucantars

Divisions Labelled Style
Divided every 6° from 0° to 90° Labelled every 6° 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 (Persian in Nashki script) (Ordinal), Plain line style.
Equal hours from sunset Numbered (None in None script) (Modern), Dotted line style.
Equal hours from sunrise Numbered (None in None script) (Modern), Dotted line style.

Inscriptions

Transcription Translation Type
لعرض لح For latitude 38° Latitude
ساعاته يد م Hours 14h 40m Hours of daylight
المشرق East Direction
المغرب West Direction
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