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  2. Almagest - Wikipedia

    en.wikipedia.org/wiki/Almagest

    An edition in Latin of the Almagestum in 1515. The Almagest (/ ˈ æ l m ə dʒ ɛ s t / AL-mə-jest) is a 2nd-century mathematical and astronomical treatise on the apparent motions of the stars and planetary paths, written by Claudius Ptolemy (c. AD 100 – c. 170) in Koine Greek. [1]

  3. Planisphaerium - Wikipedia

    en.wikipedia.org/wiki/Planisphaerium

    The Planisphaerium is a work by Ptolemy. The title can be translated as "celestial plane" or "star chart". In this work Ptolemy explored the mathematics of mapping figures inscribed in the celestial sphere onto a plane by what is now known as stereographic projection. This method of projection preserves the properties of circles.

  4. Handy Tables - Wikipedia

    en.wikipedia.org/wiki/Handy_Tables

    Ptolemy's Handy Tables (Ancient Greek: πρόχειροι κανόνες, romanized: Procheiroi kanones) is a collection of astronomical tables that second century astronomer Ptolemy created after finishing the Almagest. The Handy Tables elaborated the astronomical tables of the Almagest and included usage instructions, but left out the ...

  5. File:1660 celestial map illustrating Claudius Ptolemy's model ...

    en.wikipedia.org/wiki/File:1660_celestial_map...

    Size of this preview: 705 × 600 ... and other countries and areas where the copyright term is the author's life plus 100 years ... map illustrating Claudius Ptolemy ...

  6. Geocentric model - Wikipedia

    en.wikipedia.org/wiki/Geocentric_model

    Early in the 11th century, Alhazen wrote a scathing critique of Ptolemy's model in his Doubts on Ptolemy (c. 1028), which some have interpreted to imply he was criticizing Ptolemy's geocentrism, [14] but most agree that he was actually criticizing the details of Ptolemy's model rather than his geocentrism. [15]

  7. Historical models of the Solar System - Wikipedia

    en.wikipedia.org/wiki/Historical_models_of_the...

    Ptolemy attempted to resolve the Planetary motion dilemma in which the observations were not consistent with the perfect circular orbits of the bodies. Ptolemy adopted the Apollonius' epicycles as solution. [47] Ptolemy emphasised that the epicycle motion does not apply to the Sun. His main contribution to the model was the equant points. He ...

  8. Harmonia Macrocosmica - Wikipedia

    en.wikipedia.org/wiki/Harmonia_Macrocosmica

    The Harmonia Macrocosmica is a star atlas written by Andreas Cellarius and published in 1660 by Johannes Janssonius.The first part of the atlas contains copper plate prints depicting the world systems of Claudius Ptolemy, Nicolaus Copernicus, and Tycho Brahe.

  9. Primary direction (astrology) - Wikipedia

    en.wikipedia.org/wiki/Primary_direction_(astrology)

    This method has been around for over 1800 years and is mentioned in the Tetrabiblos of Claudius Ptolemy in the section on calculating the length of life. It gained widespread popularity in medieval Europe and was thoroughly described by Jean-Baptiste Morin (a.k.a. Morinus) in the 22nd book of his Astrologia Gallica.