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Keywords
- Almucantar3
- Arithmetic1
- Astrolabes5
- Astrology1
- Astrology, Arab1
- Astronomical instruments4
- Astronomy3
- Astronomy, Arab11
- Calendar, Chinese1
- Calendars1
- Charts, diagrams, etc.1
- Constellations1
- Early works13
- Eighteenth century1
- Fifteenth century1
- Iran1
- Islamic Empire1
- Islamic calendar2
- Islamic countries1
- Islamic philosophy1