In astronomy, Muḥammad ibn Jābir al-Ḥarrānī al-Battānī improved the precision of the measurement of the precession of the Earth's axis. The corrections made to the geocentric model by al-Battani, Averroes, Nasir al-Din al-Tusi, Mu'ayyad al-Din al-'Urdi and Ibn al-Shatir were later incorporated into the Copernican heliocentric model. Heliocentric theories were also discussed by several other Muslim astronomers such as Al-Biruni, Al-Sijzi, Qotb al-Din Shirazi, and Najm al-Dīn al-Qazwīnī al-Kātibī. The astrolabe, though originally developed by the Greeks, was perfected by Islamic astronomers and engineers, and was subsequently brought to Europe. COUNT 5
QSN1 What field did Muḥammad ibn Jābir al-Ḥarrānī al-Battānī contribute to? ANS1 astronomy QSN2 What work is Muḥammad ibn Jābir al-Ḥarrānī al-Battānī known for as it regards to earth? ANS2 improved the precision of the measurement of the precession of the Earth's axis QSN3 Who created the astrolabe? ANS3 the Greeks QSN4 What model did the work of Muslim World astronomers contribute to? ANS4 the Copernican heliocentric model QSN5 Who is said to have mastered the astrolabe? ANS5 Islamic astronomers and engineers