The achievements of
Muslim scientists in
astronomy
Al-Farghani
Al-Farghani was one of the
astronomers of the caliph alMa’mun. He wrote about the
astrolabe, explaining the
mathematical theory behind
his work, and corrected the
erroneous geometric
structures of the central disk.
between these bodies and
their distance from Earth.
Al-Battani
Al-Battani wrote the book Zij al-Sabi’,
which is considered one of his most
important books. Al-Battani was
famous in astronomy, and he was
able to calculate the length of the solar
year and the length of the tropical
year, and predicted eclipses and
lunar eclipses, in addition to his study
of the phenomenon of the different
seasons. He also made important and
real amendments to the book of
Ptolemy, and Al-Battani died in In 929
AD.
Al-Tusi is called Al-Tusi in relation to his hometown
of Tus in the province of Khorasan. He is Abu Jaafar
Muhammad bin Al-Hassan Naseer Al-Din, he
studied language and religion sciences, then he was
a student in his youth at the hands of the wellknown mathematician Kamal Al-Din bin Yunus, and
Al-Tusi made strenuous efforts in studying Islamic
and Greek works in astronomy. And he did many
works, which are as follows: He made the first
astrolabe. The establishment of the Maragheh
Observatory, which was considered the greatest
astronomical edifice in the Islamic civilization, and
the largest astronomical observatory before the
modern era. Equipping the Maragheh Observatory
with unique equipment to monitor the earth's
atmosphere and celestial bodies, in addition to the
existence of a library that includes approximately
400,000 volumes. Authored more than 145 books in
mathematical sciences, astronomy, geography, and
physics.