Late Medieval Planetary Theory

@article{Kennedy1966LateMP,
  title={Late Medieval Planetary Theory},
  author={Edward S. Kennedy},
  journal={Isis},
  year={1966},
  volume={57},
  pages={365 - 378}
}
THIS PAPER IS an attempt to describe and discuss models for representing planetary motion developed in the thirteenth century or shortly thereafter. A series of four articles which have appeared in this journal 1 have dealt with the related work of a Damascene astronomer of the following century, one Ibn al-Shatir. The latter gives a list of his predecessors who worked in the same field, and an effort has been made to examine systematically the extant writings of these individuals. The findings… 

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