Al-KhalīLĪ's Auxiliary Tables for Solving Problems of Spherical Astronomy

  title={Al-KhalīLĪ's Auxiliary Tables for Solving Problems of Spherical Astronomy},
  author={David King},
  journal={Journal for the History of Astronomy},
  pages={110 - 99}
  • David King
  • Published 1 June 1973
  • Physics
  • Journal for the History of Astronomy
Early in the development of Islamic astronomy there were tabulated sets of functions which had no direct astronomical significance, but were of such a nature that ordered applications of them would lead to the solution of spherical astronomical problems. These auxiliary tables reveal considerable mathematical ingenuity on the part of their original compilers. Thus far the tables of three important Islamic astronomers have been studied, namely, those of Habash al-Hasib(ca 850); AbU Nasr Mansur… 

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4) states that al-KhalIli was associated with the Yalbagha Mosque outside Damascus. The title folio of MS B.N. ar. 2558 states that he was a timekeeper (muwaqqit) at the Umayyad Mosque

    Sayili has already pointed to the need for further research in this area. Cf. Sayili [I], 245. On Ibn al-Shatir and his work, see Kennedy [I

      s thesis (Irani [I]) remains to be published. On Habash, see Kennedy [I

        The Jadwal al-Taqwim of l

          Abu Nasr's table. The following table shows the corresponding recomputed values