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Keywords
- Almucantar[remove]24
- Early works24
- Manuscripts, Arabic23
- New Jersey--Princeton19
- Quadrants (Astronomical instruments)19
- Astronomy, Arab12
- Astronomical instruments11
- Manuscripts, Turkish10
- Astrolabes8
- Manuscripts, Persian6
- Islamic Empire5
- Timekeeping5
- Prayer--Islam4
- Time measurements4
- diagrams4
- tables (documents)4
- Arabic language3
- Astronomy3
- Dialectic3
- Eighteenth century3