5 papers · 1 filter
The Surviving Fragment of the Zij-i Malikshahi: A Preliminary Edition, Translation, and Study of the 100-Star Catalogue in BnF Arabe 5968
Rizoi Bakhromzod
The astronomical programme sponsored by the Saljuq Sultan Malikshah I in the late eleventh century occupies an important place in the history of Islamic astronomy. Umar Khayyam was…
The influence of the Academy of Gondishapur on the formation of the House of Wisdom in Baghdad and the science of the Golden Age of Islam
Rizoi Bakhromzod
The purpose of this study is to determine the role of the Academy of Gondishapur in the formation of the Bayt al-Hikma (House of Wisdom) in Baghdad and the emergence of Islamic sci…
Determination of the longitude difference between Baghdad and Khwarezm using a lunar eclipse (the method of Abu Rayhan al-Biruni and Abu al-Wafa al-Buzjani)
Rizoi Bakhromzod
This paper examines how, in the tenth century, medieval Iranian scholars Abu Rayhan al-Biruni and Abu al-Wafa al-Buzjani determined the difference in geographical longitude between…
Legacy of Avicenna in Astronomy
Rizoi Bakhromzod
The paper reassesses the largely neglected contribution of Avicenna (Ibn Sina, 980-1037) to medieval Tajik-Persian astronomy. Drawing on published primary and secondary sources, it…
Nowruz, Umar Khayyam, Calendar and Constellations
Rizoi Bakhromzod
This article provides information about the factors that necessitated the need to adjust the calendar during the time of Umar Khayyam, the method of choosing the beginning of the y…