Ibn Yūnus’ Report on Early Islamic Observations for Determining the Rate of Precession of Equinoxes

التفاصيل البيبلوغرافية
العنوان:	Ibn Yūnus’ Report on Early Islamic Observations for Determining the Rate of Precession of Equinoxes
المؤلفون:	Giahi Yazdi, Hamid-Reza
المصدر:	Suhayl. International Journal for the History of the Exact and Natural Sciences in Islamic Civilisation; 2016-2017 Vol.: 15; p. 101-112
Publication Status:	published
بيانات النشر:	Universitat de Barcelona, 2017.
سنة النشر:	2017
مصطلحات موضوعية:	history of observational and computational astronomy, Greek Astronomy, Astronomy of the Islamic Period, Ibn Yūnus, Hipparchus, Ptolemy, precession of equinoxes, rate of precession, Regulus, Armillary sphere
الوصف:	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.
نوع الوثيقة:	article
وصف الملف:	application/pdf
اللغة:	English
تدمد:	2013-620X 1576-9372
Relation:	https://www.raco.cat/index.php/Suhayl/article/view/329907/420585
URL الوصول:	https://www.raco.cat/index.php/Suhayl/article/view/329907
حقوق:	Suhayl. International Journal for the History of the Exact and Natural Sciences in Islamic Civilisation està subjecta a una llicència Creative Commons 3.0 de Reconeixement - No Comercial - Sense Obres Derivades.
رقم الأكسشن:	edsrac.329907
قاعدة البيانات:	RACO (Revistes Catalanes amb Accés Obert)

الوصف
تدمد:	2013620X 15769372