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Keywords
- Astronomy, Arab[remove]4
- Early works4
- Manuscripts, Arabic4
- Astrolabes3
- New Jersey--Princeton3
- Quadrants (Astronomical instruments)3
- Almucantar2
- Astronomical instruments2
- Elements (Euclid)2
- Geometry2
- Illustrated works2
- Islamic Empire2
- Manuscripts, Persian2
- Manuscripts, Turkish2
- Time measurements2
- diagrams2
- Arabic alphabet1
- Astrology, Arab1
- Autographs1
- Comets1