ASTRONOMER

Ahmad ibn Muhammad ibn Kathir al-Farghani

810 - 860

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Abū al-ʿAbbās Aḥmad ibn Muḥammad ibn Kathīr al-Farghānī (Arabic: أبو العبّاس أحمد بن محمد بن كثير الفرغاني) also known as Alfraganus in the West (c. 800 – 870), was an astronomer in the Abbasid court in Baghdad, and one of the most famous astronomers in the 9th century. Al-Farghani composed several works on astronomy and astronomical equipment that were widely distributed in Arabic and Latin and were influential to many scientists. His best known work, Kitāb fī Jawāmiʿ ʿIlm al-Nujūmi (whose name translates to Elements of astronomy on the celestial motions), was an extensive summary of Ptolemy's Almagest containing revised and more accurate experimental data. Christopher Columbus used Al Farghani's calculations for his voyages to America (but mistakenly interpreted Arabic miles as Roman miles). Read more on Wikipedia

His biography is available in different languages on Wikipedia. Ahmad ibn Muhammad ibn Kathir al-Farghani is the 130th most popular astronomer (down from 87th in 2019), the 18th most popular biography from Uzbekistan (down from 15th in 2019) and the most popular Uzbekistani Astronomer.

Ahmad ibn Muhammad ibn Kathir al-Farghani is most famous for his discovery of the law of conservation of momentum, which states that in an isolated system, the total momentum of the system remains constant.

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Among ASTRONOMERS

Among astronomers, Ahmad ibn Muhammad ibn Kathir al-Farghani ranks 130 out of 644. Before him are Maria Mitchell, Girolamo Fracastoro, Hermann Goldschmidt, Svetlana Gerasimenko, E. M. Antoniadi, and Didier Queloz. After him are Reinhard Genzel, Johann Hieronymus Schröter, Victor Ambartsumian, Nicolas-Claude Fabri de Peiresc, Wilhelm von Biela, and Liisi Oterma.

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Contemporaries

Among people born in 810, Ahmad ibn Muhammad ibn Kathir al-Farghani ranks 8. Before him are John Scotus Eriugena, Pope Benedict III, Abbas ibn Firnas, Kenneth MacAlpin, Kassia, and Halfdan the Black. After him are García Íñiguez of Pamplona, Hastein, Emperor Xuanzong of Tang, Eulogius of Córdoba, Malamir of Bulgaria, and Girart de Roussillon. Among people deceased in 860, Ahmad ibn Muhammad ibn Kathir al-Farghani ranks 4. Before him are Æthelbald, King of Wessex, Pribina, and Halfdan the Black. After him is Guy I of Spoleto.

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In Uzbekistan

Among people born in Uzbekistan, Ahmad ibn Muhammad ibn Kathir al-Farghani ranks 18 out of 190. Before him are Isma'il ibn Ahmad (849), Alp-Tegin (963), Mohammed Alim Khan (1880), Viktor Bryukhanov (1935), Sadriddin Ayni (1878), and Habibullah Khan (1872). After him are Abdal-Latif Mirza (1420), Yaqub Beg (1820), Alisher Usmanov (1953), Anna German (1936), Abdullah Khan II (1533), and Abdulla Aripov (1962).

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Among ASTRONOMERS In Uzbekistan

Among astronomers born in Uzbekistan, Ahmad ibn Muhammad ibn Kathir al-Farghani ranks 1. After him are Ali Qushji (1403).

Uzbekistani born Astronomers

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