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Keywords
- Early works8
- Time measurements[remove]8
- Manuscripts, Arabic7
- Astronomy, Arab6
- New Jersey--Princeton6
- Almucantar4
- Astrolabes4
- Astronomical instruments4
- Manuscripts, Turkish4
- tables (documents)4
- Islamic Empire3
- Quadrants (Astronomical instruments)3
- Sundials3
- diagrams3
- Geographical positions2
- Illustrated works2
- Manuscripts, Persian2
- scientific illustrations (images)2
- Arab countries1
- Arabic alphabet1