In astronomy, Al-Battani improved the measurements of Hipparchus, preserved in the translation of Ptolemy's Hè Megalè Syntaxis (The great treatise) translated as Almagest. Al-Battani also improved the precision of the measurement of the precession of the Earth's axis. The corrections made to the geocentric model by al-Battani, Ibn al-Haytham, Averroes and the Maragha astronomers such as Nasir al-Din al-Tusi, Mo'ayyeduddin Urdi and Ibn al-Shatir are similar to Copernican heliocentric model. Heliocentric theories may have also been discussed by several other Muslim astronomers such as Ja'far ibn Muhammad Abu Ma'shar al-Balkhi, Abu-Rayhan Biruni, Abu Said al-Sijzi, Qutb al-Din al-Shirazi, and Najm al-Dīn al-Qazwīnī al-Kātibī.
In astronomy , Al - Battani improved the measurements of Hipparchus , preserved in the translation of Ptolemy 's Hè Megalè Syntaxis ( The great treatise ) translated as Almagest . Al - Battani also improved the precision of the measurement of the precession of the Earth 's axis . The corrections made to the geocentric model by al - Battani , Ibn al - Haytham , Averroes and the Maragha astronomers such as Nasir al - Din al - Tusi , Mo'ayyeduddin Urdi and Ibn al - Shatir are similar to Copernican heliocentric model . Heliocentric theories may have also been discussed by several other Muslim astronomers such as Ja'far ibn Muhammad Abu Ma'shar al - Balkhi , Abu - Rayhan Biruni , Abu Said al - Sijzi , Qutb al - Din al - Shirazi , and Najm al - Dīn al - Qazwīnī al - Kātibī .
Which measurement did Al-Battani improve upon?
Which measurement did Al - Battani improve upon ?
the Earth's axis
the Earth's axis