Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 2b
Latitude 33°0'
This plate is almost certainly a replacement. The engraving on this plate is quite crude.

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 Nashki script)

Inscriptions

Transcription Translation Type
لعرض اسال و اطرالصا لج For latitude of Sale and ?, 33° Latitude
شفق Morning Prayer name
الزوال Midday Prayer name
ظهر Early afternoon Prayer name
عصر Afternoon Prayer name
فجر Evening Prayer name
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