quṭb al-dīn al-shīrāzī (634h/1236ce-710h/1311ce) wrote four major works on astronomy: nihāyat al‐idrāk fī dirāyat al‐aflāk (“the utmost attainment in comprehending the orbs), in arabic, first edition completed mid-shaʿbān 680/november 1281); the ikhtiyārāt‐i muẓaffarī (“selections for muẓaffar al-dīn arslan” [a minor ruler in qasṭamūnī (modern kastamonu, turkey)], in persian, completed sometime...