Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 4a
Latitude 42°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
Horizon rectus
Unequal hours Numbered (Numbers in Numbers, engraved script) (Abdjad, maghrib), Plain line style.
Prayer lines Prayer names (Arabic in Kufic script)

Inscriptions

Transcription Translation Type
لعرض مب For latitude 42° Latitude
المشرق East Direction
المغرب West Direction
خط الفجر Line of the evening Prayer name
خط العصر Line of the afternoon Prayer name
خط الظهر Line of the early afternoon Prayer name
خط الزوال Line of the midday Prayer name
خط الشفق Line of the morning Prayer name
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