Talk abstract details

Astronomers and Astronomical Observatories at Cairo during the Fatamic Islamic Period (969-1171 A.D.)
Mosalam Shaltout


The Fatamic Islamic period in Egypt (969-1171 A.D.) showed a high progress in science, philosophy, and technology. During this period, Cairo was the Capital of the Fatamic Islamic Empire, which was covered the north of Africa and Arabic peninsula (north and west).

Three Astronomers from the brilliant scientists in the Arabic-Islamic civilization were stayed in Cairo (Ben Younes El-Masry, Hassan Ben El-Haitham, and Ali Ben Radwan).
There are three observatories were built in Cairo during the Fatamic period (El-Hakemy, El-Gioshy, and Bab El Nasr observatories). Many observations were done and astronomical Almanacs were performed such as El-Zig El-Hakemy by Ben Younes El-Masry.

Also, the brightest and the highest energetic supernova in the history at 30th April 1006 A. D. was observed and recorded by Ali Ben Radwan. Hassan spoke about the radiation from sun and stars, the reflection of radiation on the moon and planets, and the scientific interpretation for the solar and lunar eclipses. He designed a model for the solar system.

The study concerns three brilliant astronomers and three observatories at Cairo at the Fatamic islamic period (969-1171 A.D.) in details depending on the traditional references in the medieval ages.