Depth
At a glance
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Astronomy and timekeepingGeography and cartography
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موجز
التسمية
ما يقع فيها
مدى المسكون
وجهات النظر
- المؤلف (الفرغاني): الاستواء أول حد الربع المسكون، وهو المرجع الذي تقاس منه عروض البلدان.
- لم يُضف بعد: مقابلة هذا الحد بقياسات الرصد الحديثة؛ يُضاف من مصدر ثانٍ قبل الاستعمال.
People and things also explored
The seven climates· The horizon circle· The earth's sphericity· Measuring the earth· Al-Biruni, Muhammad ibn Ahmad· al-Khwarizmi· Sharaf al-Dawla's observatory at Baghdad· Qibla-finding by stars, winds, mountains and rivers
Sources
- al-Farghani, Elementa astronomica (Golius, Amsterdam 1669) , p. 111
- al-Farghani, Elementa astronomica (Golius, Amsterdam 1669) , p. 151
- al-Farghani, Elementa astronomica (Golius, Amsterdam 1669) , p. 154
- al-Farghani, Elementa astronomica (Golius, Amsterdam 1669) , p. 116
- al-Farghani, Elementa astronomica (Golius, Amsterdam 1669) , p. 148
- al-Farghani, Elementa astronomica (Golius, Amsterdam 1669) , p. 110
- al-Farghani, Elementa astronomica (Golius, Amsterdam 1669) , p. 152
Cite this page
islam.museum contributors. “The equator”. islam.museum, https://islam.museum/en/concept/dairat-al-istiwa/. CC BY-SA 4.0. Last updated 2026-10-23.