A Modern Almagest


An Updated Version of Ptolemy's Model of the Solar System  
 
Richard Fitzpatrick

Professor of Physics

The University of Texas at Austin

Introduction

Euclid's Elements and Ptolemy's Almagest
Ptolemy's Model of the Solar System
Copernicus's Model of the Solar System
Kepler's Model of the Solar System
Purpose of Treatise

Spherical Astronomy

Celestial Sphere
Celestial Motions
Celestial Coordinates
Ecliptic Circle
Ecliptic Coordinates
Signs of the Zodiac
Ecliptic Declinations and Right Ascenesions.
Local Horizon and Meridian
Horizontal Coordinates
Meridian Transits


Spherical Astrology: cont'd.

Principal Terrestrial Latitude Circles
Equinoxes and Solstices
Terrestrial Climes
Ecliptic Ascensions
Azimuth of Ecliptic Ascension Point
Ecliptic Altitude and Orientation


Dates
Introduction
Determination of Julian Day Numbers


Geometric Planetary Orbit Models
Introduction
Model of Kepler
Model of Hipparchus
Model of Ptolemy
Model of Copernicus


The Sun
Determination of Ecliptic Longitude
Example Longitude Calculations
Determination of Equinox and Solstice Dates
Equation of Time


The Moon
Determination of Ecliptic Longitude
Example Longitude Calculations
Determination of Ecliptic Latitude
Lunar Parallax


Lunar-Solar Syzygies and Eclipses
Introduction
Determination of Lunar-Solar Elongation
Example Syzygy Calculations
Solar and Lunar Eclipses
Example Eclipse Calculations
Eclipse Statistics


The Superior Planets
Determination of Ecliptic Longitude
Mars
Determination of Conjunction, Opposition, and Station Dates
Jupiter
Saturn


The Inferior Planets
Determination of Ecliptic Longitude
Venus
Determination of Conjunction and Greatest Elongation Dates
Mercury


Planetary Latitudes
Introduction
Determination of Ecliptic Latitude of Superior Planet
Mars
Jupiter
Saturn
Determination of Ecliptic Latitude of Inferior Planet
Venus
Mercury


Glossary
Index of Symbols
Bibliography
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