Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 3a
Latitude 34°0'
Like all the tympans with this instrument, this one has a faulty stereographic projection. By inspection, they are all for the same latitude, regardless of what the engraved latitude might indicate..

Circles

Type Labelled Style Notes
Equator Plain line.
Tropic of Cancer Plain line.
Tropic of Capricorn Plain line.

Lines

Type Labelled Description
Equal hours from sunset Numbered (Numbers in Numbers, engraved script) (Abdjad), Plain line style.
Equal hours from sunrise Numbered (Numbers in Numbers, engraved script) (Abdjad), Plain line style.
Meridian line
Horizon rectus

Inscriptions

Transcription Translation Type
لعرض لد For latitude 34° Latitude
ساعاته يب Hours 12h Hours of daylight
المشرق East Direction
المغرب West Direction
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