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Keywords
- Almucantar[remove]14
- Early works14
- Manuscripts, Arabic14
- Quadrants (Astronomical instruments)11
- New Jersey--Princeton10
- Astronomy, Arab8
- Astronomical instruments6
- Astrolabes5
- Manuscripts, Turkish5
- Timekeeping4
- Prayer--Islam3
- diagrams3
- tables (documents)3
- Astronomy2
- Geometry2
- Islamic Empire2
- Manuscripts, Persian2
- Mathematics, Arab2
- Qiblah2
- Satellites--Phases2