Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 1a
Latitude 21°0'
.

Almucantars

Divisions Labelled Style
Divided every 6° from 0° to 90° Labelled every 6° with   (Abdjad, maghrib) numerals Plain line.

Azimuths

Divisions Labelled Style
Divided every 10°  Labelled every 10° with   (Abdjad, maghrib) 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 خط الزوال (Arabic in Kufic script)
Horizon rectus
Unequal hours Numbered (Numbers in Numbers, engraved script) (Abdjad, maghrib), Plain line style.

Inscriptions

Transcription Translation Type
مكه اليمامه الصايف جكه لعري كا م Mecca, al-Yamamah as-Saif Jukah, for latitude 21 40' Latitude
المشرق East Direction
المغرب West Direction
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