Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 3b
Latitude 32°0'
This tympan was originally engraved for a different latitude and a different length of daylight. The former values are no longer legible under the later numbers..

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
Unequal hours Numbered (None in None script) (Abdjad), Plain line style.
Equal hours from sunset Numbered (None in None script) (Modern), Plain line style.

Inscriptions

Transcription Translation Type
لعرض لب كه For latitude 32°25' Latitude
ساعسته بج نح Hours 13h58m Hours of daylight
المشرق ُEast Direction
المغرب West Direction
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