Astronomy.
The text is a commentary to the astronomical compendium al-Mulahhas fī al-hay'ah written by Mahmūd ibn Muhammad ibn 'Umar al-Ğiġmīni al Hwarizmi (d. after 618 H [1221]).
In the margins one can find the supercommentary of Šarh [kitāb]al-Ğiġmīni: Al-Masiyah [ala Šarh mulahhas al-Ğiġmīni li-Qādizāde] written by Abd al-'Alī [al-]Birğandī (d. after 935 H [1528 CE]).
Described in: Catalogue of Arabic Manuscripts. Codices Arabici Arthur Christenseniani by Irmeli Perho. Copenhagen. Det Kongelige Bibliotek, 2003, pp. 1-5.
Cod. Arab. AC 60.