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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. Read more on Wikipedia

Since 2007, the English Wikipedia page of Ahmad ibn Muhammad ibn Kathir al-Farghani has received more than 64,839 page views. His biography is available in 33 different languages on Wikipedia (up from 29 in 2019). Ahmad ibn Muhammad ibn Kathir al-Farghani is the 79th most popular astronomer (down from 50th in 2019), the 18th most popular biography from Uzbekistan (down from 11th 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.

Memorability Metrics

  • 65k

    Page Views (PV)

  • 60.59

    Historical Popularity Index (HPI)

  • 33

    Languages Editions (L)

  • 5.91

    Effective Languages (L*)

  • 2.66

    Coefficient of Variation (CV)

Page views of Ahmad ibn Muhammad ibn Kathir al-Farghanis by language


Among ASTRONOMERS

Among astronomers, Ahmad ibn Muhammad ibn Kathir al-Farghani ranks 79 out of 531Before him are Max Wolf, Russell Alan Hulse, Abū Ishāq Ibrāhīm al-Zarqālī, Stephen Gray, Petrus Plancius, and Arthur B. McDonald. After him are Karl Ludwig Harding, Lewis A. Swift, Walter Baade, Wilhelm Tempel, Edward Emerson Barnard, and Giovanni Battista Riccioli.

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Contemporaries

Among people born in 810, Ahmad ibn Muhammad ibn Kathir al-Farghani ranks 7Before him are Muhammad al-Bukhari, Abbas ibn Firnas, Pope Benedict III, John Scotus Eriugena, Halfdan the Black, and Kenneth MacAlpin. After him are Kassia, Emperor Xuanzong of Tang, Hastein, García Íñiguez of Pamplona, Eulogius of Córdoba, and Eberhard of Friuli. Among people deceased in 860, Ahmad ibn Muhammad ibn Kathir al-Farghani ranks 3Before him are Halfdan the Black and Pribina. After him are Æthelbald, King of Wessex and Guy I of Spoleto.

Others Born in 810

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Others Deceased in 860

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In Uzbekistan

Among people born in Uzbekistan, Ahmad ibn Muhammad ibn Kathir al-Farghani ranks 18 out of 145Before him are Shavkat Mirziyoyev (1957), Habibullah Khan (1872), Isma'il ibn Ahmad (849), Mohammed Alim Khan (1880), Anna German (1936), and Alisher Usmanov (1953). After him are Viktor Bryukhanov (1935), Yaqub Beg (1820), Abdullah Khan II (1533), Abdal-Latif Mirza (1420), Sadriddin Ayni (1878), and Ali Qushji (1403).

Among ASTRONOMERS In Uzbekistan

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