
Contents
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1. Introduction: Classical Astrology 1. Introduction: Classical Astrology
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2. Types 2. Types
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2.1 Universal, or Mundane, Astrology 2.1 Universal, or Mundane, Astrology
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2.2 Genethlialogy 2.2 Genethlialogy
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2.3 Interrogational Astrology 2.3 Interrogational Astrology
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2.4 Catarchic Astrology 2.4 Catarchic Astrology
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3. The Sources 3. The Sources
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3.1 Astronomica, Marcus Manilius 3.1 Astronomica, Marcus Manilius
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3.2 Pentateuch, Dorotheus of Sidon 3.2 Pentateuch, Dorotheus of Sidon
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3.3 Anthologies, Vettius Valens 3.3 Anthologies, Vettius Valens
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3.4 Apotelesmatika (i.e., Tetrabiblos), Ptolemy 3.4 Apotelesmatika (i.e., Tetrabiblos), Ptolemy
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3.5 Mathesis, Iulius Firmicus Maternus 3.5 Mathesis, Iulius Firmicus Maternus
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4. Origins 4. Origins
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4.1 Ptolemaic Egypt: Birthplace of Horoscopic Astrology 4.1 Ptolemaic Egypt: Birthplace of Horoscopic Astrology
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4.2 Astrology Comes to the Classical World 4.2 Astrology Comes to the Classical World
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4.3 The Greek Synthesis 4.3 The Greek Synthesis
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4.4 Astrology in the Roman World 4.4 Astrology in the Roman World
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4.4.1 Republican Period 4.4.1 Republican Period
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4.4.2 Astrology and the Emperors 4.4.2 Astrology and the Emperors
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4.4.2.1 Imperial Uses of Astrology 4.4.2.1 Imperial Uses of Astrology
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4.4.2.2 Thrasyllus’ Family: Astrology as a Means to Political Power 4.4.2.2 Thrasyllus’ Family: Astrology as a Means to Political Power
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5. Astrology and Medicine 5. Astrology and Medicine
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6. Opponents of Astrology 6. Opponents of Astrology
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7. Skepticism 7. Skepticism
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7.1 Lucretius and Cicero 7.1 Lucretius and Cicero
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7.2 Sextus Empiricus 7.2 Sextus Empiricus
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7.3 Tacitus 7.3 Tacitus
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7.4 Astrology and Christianity 7.4 Astrology and Christianity
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8. An Ancient Example: The Horoscope of Hadrian 8. An Ancient Example: The Horoscope of Hadrian
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8.1 The Chart 8.1 The Chart
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8.2 Diversity of Methods of Interpretation 8.2 Diversity of Methods of Interpretation
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8.3 The Planets and their Valences 8.3 The Planets and their Valences
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8.4 The Lots 8.4 The Lots
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8.5 Aspects 8.5 Aspects
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8.6 Sign Rulership: Houses (oikoi) 8.6 Sign Rulership: Houses (oikoi)
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8.7 The Terms (horia) 8.7 The Terms (horia)
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8.8 The Decans 8.8 The Decans
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8.9 Planetary Exaltation and Dejection 8.9 Planetary Exaltation and Dejection
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8.10 Analysis by Antigonus of Nicaea 8.10 Analysis by Antigonus of Nicaea
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Bibliography Bibliography
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C8 Astrology: The Science of Signs in the Heavens
Get accessGlen M. Cooper, Independent Scholar, Springville, UT, USA
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Published:10 July 2018
Cite
Abstract
In its original Babylonian and Egyptian contexts, astrology was the interpretation of celestial signs and omens sent by the gods as warnings to rulers and the elite. Roman fondness for Stoicism fertilized the growth of astrology in the Greco-Roman world, which developed into a natural science, fully integrated with the prevailing cosmology. Astrology became popularized, and anyone who could afford some level of the service knew basic features of his natal chart. The chapter explains the various forms and purposes of judicial or divinatory astrology: “mundane” (heavenly effects on regions), “genethlialogical” (heavenly effects on a life from its birth or conception), “horary” (heavenly effects on the present moment), and “catarchic” (heavenly effects on the future). The chapter also provides an historical sketch of classical astrology, from Babylonian origins through the major surviving handbooks, and an elaborated ancient example of a natal chart (of the emperor Hadrian), its methods, and interpretation.
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