Arabic alphabet numbers, Latin transcription, and Latin numbers
Spain
10th Century
Source: Ibn Yūnus (d. 399/1009); Schramm, M. et al., Der Astrolabtext aus der Handschrift Codex 196, Burgerbibliothek Bern, 17/2006-7/199-300.
Recipe Details
Preparation Steps
The model was made after illustrations in the Sententiae astrolabii by Lupitus of Barcelona, preserved in the Bongarsiana Burgerbibliothek Bern as Cod. 196 (p. 92). This work is a partial adaptation of the Arabic model by Muḥammad b. Mūsā al-Khwārizmī (active 813-833). The script includes star names in Arabic using Latin script and hour line names (p. 92).
Original Recipe Text
The model was made after illustrations in the Sententiae astrolabii by Lupitus of Barcelona, preserved in the Bongarsiana Burgerbibliothek Bern as Cod. 196 (p. 92). This work is a partial adaptation of the Arabic model by Muḥammad b. Mūsā al-Khwārizmī (active 813-833). The script includes star names in Arabic using Latin script and hour line names (p. 92).
Evidence
"It is interesting that the 360 degree scale on the limb is executed threefold: in Arabic alphabet numbers, the same in Latin transcription, and in Latin numbers. On the other hand, the calendar circle (365 days) on the back is engraved only in Arabic alphabet numbers (though not faultlessly)."
Remarks
The ink/lettering on the original manuscript illustrations (Cod. 196) features a complex mix of Arabic alphabet numbers, their Latin transcriptions, and Latin numerals (p. 92). This reflects the transmission of astronomical knowledge from Islamic sources into Latin contexts in the 10th century (p. 93).
Scientific Analysis
Certainty Level
Inferred
Instrumentally Verified
Not Verified
Metadata
Material Type
ink
Paper Typemanuscript
ColorBlack
RegionSpain
Approx. Year950
Source Information
AuthorIbn Yūnus
CollectionBurgerbibliothek Bern, Cod. 196
Language
N/A
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