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date: 08 December 2022



  • G. J. Toomer
  •  and Alexander Jones


Timocharis, astronomer at *Alexandria (1), made observations between 295 and 272 bce reported by *Ptolemy(4). These record positions of the moon and Venus with respect to fixed stars. He also recorded star declinations, used later by *Hipparchus(3) and Ptolemy (Almagest 7. 3); some are attributed to Aristyllus (RE3), who seems to have been his associate.


  • Science, Technology, and Medicine

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