Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 1a
Latitude 37°0'
.

Almucantars

Divisions Labelled Style
Divided every 3° from 0° to 90° Labelled every 3° with   (Abdjad) numerals Plain line.

Azimuths

Divisions Labelled Style
Divided every 5°  Labelled every 5° 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 None script) (Abdjad), Plain line style.
Prayer lines Prayer names (Arabic in Kufic script)

Inscriptions

Transcription Translation Type
لكل موضع عرضه لز ل For every place at latitude 37°30' Latitude
المشرق East Direction
المغرب West Direction
خط الفجر Line of the evening Prayer name
خط العصر Line of the afternoon Prayer name
خط الزوال Line of the midday Prayer name
خط الشفق Line of the morning Prayer name
خط الظهق Line of a little after noon Prayer name
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