Ibn Yūnus’ Report on Early Islamic Observations for Determining the Rate of Precession of Equinoxes (2017)
Yazdi, Hamid-Reza Giahi (Author)
Suhayl: Journal for the History of the Exact and Natural Sciences in Islamic Civilisation
Volume: 15
Pages: 101-112
The present article deals with Ibn Yūnus’ report about an astronomical parameter, so-called “precession of equinoxes”. In ancient astronomy the cause of precession was justified by different methods. The rate of precession was important for updating stars and planetary tables. Precession was discovered by Hipparchus and examined by Greek astronomers later. It apparently influenced the early generation of Muslim astronomers to repeat new observations for about three centuries. We will deal with the observational accuracy of Greek and Muslim astronomers in measuring the ecliptic longitude of Regulus, which was being employed to obtain the rate of Precession.
...MoreSimilar Citations
Article
Dalen, Benno Van;
(2004)
A Second Manuscript of the Mumtaḥan Zīj
(/isis/citation/CBB000931706/)
Article
S. Mohammad Mozaffari;
(2017)
A Revision of the Star Tables in the Mumtaḥan Zīj
(/isis/citation/CBB552196541/)
Book
Chabás, José;
Goldstein, Bernard R.;
(2012)
A Survey of European Astronomical Tables in the Late Middle Ages
(/isis/citation/CBB001252573/)
Article
S. Mohammad Mozaffari;
Georg Zotti;
(2015)
Bīrūnī’s Telescopic-Shape Instrument for Observing the Lunar Crescent
(/isis/citation/CBB723834778/)
Chapter
Terence J. Kleven;
(2012)
Al-Fārābī's Five Aphorisms on Logic
(/isis/citation/CBB764051773/)
Book
Jacques Sesiano;
(2017)
Magic Squares in the Tenth Century: Two Arabic Treatises by Anṭākī and Būzjānī
(/isis/citation/CBB096340211/)
Article
Paris, Harry S.;
Amar, Zohar;
Lev, Efraim;
(2012)
Medieval History of the Duda'im Melon (Cucumis melo, Cucurbitaceae)
(/isis/citation/CBB001320676/)
Book
Rashed, Roshdi;
(2006)
Ibn al-Haytham: Astronomie, géométrie sphérique et trigonométrie
(/isis/citation/CBB001024095/)
Chapter
Oort, Frans;
(2007)
Congruent Numbers in the Tenth and in the Twentieth Century
(/isis/citation/CBB000930936/)
Article
Rashed, Roshdi;
(2010)
Les constructions géométriques entre géométrie et algèbre: L'Épître d'Abū al-Jūd à al-Bīrūnī
(/isis/citation/CBB000933050/)
Article
Irueste, Fernando Girón;
(2001)
Medicina y Ciencia en al-Andalus
(/isis/citation/CBB000102472/)
Chapter
Ambjörn, Lena;
(2008)
A New Source for the History of Medicine: An Arabic Medical Handbook from the 10th Century
(/isis/citation/CBB001022265/)
Article
Raynaud, Dominique;
(2012)
Abu Al-Wafa' Latinus? A Study of Method
(/isis/citation/CBB001036230/)
Article
Fennane, Khalid Bouzoubaâ;
(2003)
Réflexions sur le principe de continuité à partir du commentaire d'ibn al-Haythem sur la proposition 1.7 Des Éléments d'Euclide
(/isis/citation/CBB000340503/)
Article
Bertolacci, Amos;
(2013)
Albertus Magnus and “Avenzoreth” (Ibn Zur`a, D. 1008): Legend or Reality?
(/isis/citation/CBB001420837/)
Article
Neria, Chaim Meir;
(2013)
Al-Farabi's Lost Commentary on the Ethics: New Textual Evidence
(/isis/citation/CBB001252564/)
Chapter
Abgrall, Philippe;
(2004)
Al-Qūhī, archimédien
(/isis/citation/CBB000650844/)
Thesis
Janos, Damien;
(2009)
Intellect, Substance, and Motion in al-Farabi's Cosmology
(/isis/citation/CBB001561105/)
Article
Carrara, Angelo Alves;
(2006)
Geoponica and Nabatean Agriculture: A New Approach into Their Sources and Authorship
(/isis/citation/CBB000651645/)
Book
Adamson, Peter;
(2008)
In the Age of al-Fārābī: Arabic Philosophy in the Fourth/Tenth Century
(/isis/citation/CBB001022020/)
Be the first to comment!