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Keywords
- Almucantar[remove]23
- Early works23
- Manuscripts, Arabic22
- New Jersey--Princeton19
- Quadrants (Astronomical instruments)18
- Astronomical instruments11
- Astronomy, Arab11
- Manuscripts, Turkish10
- Astrolabes7
- Manuscripts, Persian6
- Islamic Empire5
- Prayer--Islam4
- Time measurements4
- Timekeeping4
- diagrams4
- tables (documents)4
- Arabic language3
- Dialectic3
- Geometry3
- Hadith3