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Full Description
This volume presents comprehensive investigations into various facets of observational astronomy during the medieval Islamic period, spanning from the ninth to the seventeenth centuries. The chapters compiled here, originally published between 2012 and 2018, have undergone significant revisions to enhance their accuracy and explore a broad spectrum of topics organized into five main sections.
Reflections on Observational Astronomy in the Medieval Islamic Period begins with solar astronomy, providing a detailed evaluation of Islamic astronomers' determinations of fundamental solar parameters. In the realm of lunar astronomy, it examines the gradual endorsement and rationalization of annular solar eclipses, along with an exclusive historical account of predicting and observing such an event in 1283 CE. The section on planetary astronomy scrutinizes empirical discoveries that distinguish between the precession of equinoxes and the motion of apogees, as well as significant enhancements to Ptolemy's parameters for planetary latitudes. Stellar astronomy is explored through a non-Ptolemaic star table that encompasses observations from ninth-century Baghdad to thirteenth-century Marāgha. The final section examines observational instruments, focusing on those constructed during the second period of activities at the Marāgha observatory. A critical analysis of astronomical observations conducted at the Marāgha and Istanbul observatories is a key focus of this work.
This book will be invaluable to those interested in the historical progression of exact sciences; the scope, distinctive aspects, and caliber of experimental activities in medieval times; and the interplay between theory and observation throughout history. It is intended for historians, scientists (including astronomers and physicists), and particularly, historians of astronomy.
Contents
Introduction
Part I. Solar Astronomy
Chapter 1. Limitations of Methods: The Accuracy of the Values Measured for the Earth's/Sun's Orbital Elements in the Middle East, 800-1500 ce
Part II. Lunar Astronomy and Theory of Eclipses
Chapter 2. How Natural Phenomena Were Justified in Medieval Science: The Situation of Annular Eclipses in Medieval Astronomy
Chapter 3. Wābkanawī's Observation and Calculations of the Annular Solar Eclipse of 30 January 1283
Chapter 4. Bīrūnī's Examination of the Path of the Centre of the Epicycle in Ptolemy's Lunar Model
Chapter 5. Solar and Lunar Observations at Istanbul in the 1570s
Part III. Planetary Astronomy
Chapter 6. Four-Point Method for Determining the Eccentricity and the Direction of the Apsidal Lines of the Sun and Superior Planets
Chapter 7. Planetary Latitudes in Medieval Islamic Astronomy: An Analysis of the Non-Ptolemaic Latitude Parameter Values in the Maragha and Samarqand Astronomical Traditions
Chapter 8. Holding or Breaking with Ptolemy's Generalization: Considerations about the Motion of the Planetary Apsidal Lines in Medieval Islamic Astronomy
Chapter 9. Astronomical Observations at the Maragha Observatory in the 1260s-70s
Part IV. Stellar Astronomy
Chapter 10. A Medieval Bright Star Table: The Non-Ptolemaic Star Table in the Īlkhānī Zīj
Part V. Observational Instrumentation
Chapter 11. Ghāzān Khān's Astronomical Innovations at Marāgha Observatory
