Abd al-'Aziz ibn Muhammad al-Qahiri al-Wafa'i known as Ibn al-Aqba'i (1408–1471) was an

Egyptian Egyptian describes something of, from, or related to Egypt. Egyptian or Egyptians may refer to: Nations and ethnic groups * Egyptians, a national group in North Africa ** Egyptian culture, a complex and stable culture with thousands of years of ...

astronomer and mathematician in the 15th century. He was born in 811 H.E. (1408 AD) and died in 876 H.E (1471 AD). Some sources say that he died in 874 or 879 H.E. He was a student of

Ibn al-Majdi Shihāb al‐Dīn ibn al‐Majdī ( ar, شهاب الدين بن المجدي; 1359–1447 CE) was an Egyptian mathematician and astronomer An astronomer is a scientist in the field of astronomy who focuses their studies on a specific questio ...

and

Nur al-din al-Naqqash Nur may refer to: In Islam * An-Nur, one of the names of God in Islam, meaning "The Light". * Nūr (Islam), a concept, literally meaning "light" * An-Nur (The Light), the 24th chapter of the Qur'an * ''Risale-i Nur Collection'', a collection of ...

. He became a time keeper at the Mu'ayyad Mosque in

Cairo Cairo ( ; ar, القاهرة, al-Qāhirah, ) is the capital of Egypt and its largest city, home to 10 million people. It is also part of the largest urban agglomeration in Africa, the Arab world and the Middle East: The Greater Cairo metro ...

. He also became the chief of the time keepers of the Azhar mosque and the Maridani Mosque. He was interested in the calculation of the local times of cities based on their latitude and longitude. He invented an astronomical device called Da'irah al-Mu'addal. He wrote about 40 books and 20 treatises on

mathematics Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics ...

and

astronomy Astronomy () is a natural science that studies astronomical object, celestial objects and phenomena. It uses mathematics, physics, and chemistry in order to explain their origin and chronology of the Universe, evolution. Objects of interest ...

, none of them published. Among his works is the manuscript Risalah al-'Amal bi al-Rub' al-Mujayyab

References

{{DEFAULTSORT:Abd al-Aziz al-Wafai 1408 births 1471 deaths Scientists who worked on qibla determination 15th-century astronomers Medieval Egyptian astronomers Medieval Egyptian mathematicians Medieval astronomers Scholars from the Mamluk Sultanate