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Keywords
- Almucantar[remove]20
- Early works20
- Manuscripts, Arabic20
- New Jersey--Princeton15
- Quadrants (Astronomical instruments)15
- Astronomy, Arab12
- Astronomical instruments9
- Manuscripts, Turkish8
- Astrolabes7
- Islamic Empire5
- Timekeeping5
- Manuscripts, Persian4
- Time measurements4
- diagrams4
- tables (documents)4
- Arabic language3
- Astronomy3
- Eighteenth century3
- Hadith3
- Illustrated works3