I want to know the answer to the following question:
What field did Muḥammad ibn Jābir al-Ḥarrānī al-Battānī contribute to?
All the background I'm provided with is that "In astronomy, Muḥammad ibn Jābir al-Ḥarrānī al-Battānī improved the precision of the measurement of the precession of the Earth's axis.". Is that enough to answer the question?
Answer: yes