Another Look at Ptolemy's IVY Leaf

  title={Another Look at Ptolemy's IVY Leaf},
  author={W. Knorr},
  journal={Journal for the History of Astronomy},
  pages={180 - 183}
  • W. Knorr
  • Published 1991
  • Physics
  • Journal for the History of Astronomy
2 Citations

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The History of Ptolemy’s Star Catalogue
Contents: Introduction.- The Stars of the Almagest.- Accusations.- The Rehabilitation of Ptolemy.- The Analysis of the Star Catalogue.- Structures in Ptolemy's Star Catalogue.- Theory andExpand
Other examples are illustrated in connection with the question of identifying the Greek "cissoid", or "ivy-shaped curve
  • 1986
For alternative translation, see G
  • J. Toomer, Ptolemy's Almagest (New York/Berlin/Heidelberg/Tokyo,
  • 1984
Heiberg's edition, Ptolemaei Syntaxis mathematica (2 parts
  • Ptolemiius Handbuch der Astronomie (2 vols
  • 1984
Ptolemy's Ivy Leaf
which also crosses inside the orbit of Saturn and appears to be a distant asteroid. Doubtless there are any number of asteroids that fulfil these conditions and can pass each other without aExpand
The Latin poet Hyginus, who includes Eratosthenes among his sources, describes Coma in the same terms
  • 1963
Ptolemy's Catalogue of Stars
JUST forty years ago the late Prof. Peters, of Clinton, New York, and Mr. Knobel began independently, and without either of them knowing of the other's work, to investigate the Catalogue of Stars inExpand