Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 2a
Latitude 25°0'
.

Almucantars

Divisions Labelled Style
Divided every 3° 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 (Numbers in Kufic script) (Abdjad), Plain line style.
Prayer lines Prayer names (Arabic in Kufic script)

Inscriptions

Transcription Translation Type
لعرض كه For latitude 25°. Latitude
الزوال Midday Direction
مشرق East Direction
مغرب West Direction
MHS Home | Contact Us | ©2006 Museum of the History of Science