Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 8a
Latitude 29°0'
48 stars are indicated on this tympan by a dot within a circle and the star's name..

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 30°  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 Numbers, engraved script) (Abdjad), Plain line style.
Equal hours from sunset Numbered (Numbers in Numbers, engraved script) (Abdjad), Hatched line style.

Inscriptions

Transcription Translation Type
العرض كط Latitude 29° Latitude
ساعاته يج Hours 13h Hours of daylight

Scales


Type Range & Units Numbered Geometry Location
Zodiacal signs Aries - Pisces Degrees of ecliptic Every 6 degrees n/a n/a
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