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Witnessing Doctrine

Witnessing reference material with reviewed sources and calculation context.

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In this section
  • Timing Techniques
  • Planetary Condition And Dignity
  • Chart Structure And Calculation
  • Relationships And Interactions
  • Visibility And Observed Events
  • Lunar And Sidereal Frameworks
  • Vedic Astrology
  • Electional And Applied Workflows
TopicCalculation method
TraditionsHellenistic, Late Antique, Medieval Arabic/Persian, Modern/Contemporary, Traditional astrology
AuthorsAbu Ma'shar, Chris Brennan, Claudius Ptolemy, Demetra George, Paulus Alexandrinus, Vettius Valens
Source texts9
Documented rules4

Source basis

This page gathers source context for calculation methods and reference values used in chart work.

4 reviewed rules connect this doctrine to source-backed chart interpretation.

9 source texts support this reference page.

Doctrine sections

Each section groups reviewed rule notes by topic and lists the sources those notes draw on.

Section

Ascendant Ruler

1 documented rule with 1 listed source.
Source texts

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940).

6 locator entries

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 44.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 49.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 57.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 73.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 79.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 81.

Ptolemaic Ascendant ruler and sect light configure

Ptolemynormalized condition bundleimplemented

When the Ascendant ruler and sect light witness one another by whole-sign ray, the chart's governing planet and primary luminary remain directly connected.

Implemented calculation
  1. Compare the signs using the configured Ptolemaic sign relationship table, including aversion, witnessing, and domicile or exaltation relationships where named.
Rule sources
6 locator entries

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 44.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 49.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 57.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 73.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 79.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 81.

Section

Classical Ray

1 documented rule with 3 listed sources.
Source texts

  • Chris Brennan. Hellenistic Astrology: The Study of Fate and Fortune (2017).

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940).

  • Demetra George. Ancient Astrology in Theory and Practice, Volume 2 (2022).

20 locator entries

  • Chris Brennan. Hellenistic Astrology: The Study of Fate and Fortune (2017), 105.

  • Chris Brennan. Hellenistic Astrology: The Study of Fate and Fortune (2017), 123.

  • Chris Brennan. Hellenistic Astrology: The Study of Fate and Fortune (2017), 42.

  • Chris Brennan. Hellenistic Astrology: The Study of Fate and Fortune (2017), 43.

  • Chris Brennan. Hellenistic Astrology: The Study of Fate and Fortune (2017), 73.

  • Chris Brennan. Hellenistic Astrology: The Study of Fate and Fortune (2017), 85.

  • Chris Brennan. Hellenistic Astrology: The Study of Fate and Fortune (2017), 95.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 44.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 49.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 57.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 73.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 79.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 81.

  • Demetra George. Ancient Astrology in Theory and Practice, Volume 2 (2022), 105.

  • Demetra George. Ancient Astrology in Theory and Practice, Volume 2 (2022), 126.

  • Demetra George. Ancient Astrology in Theory and Practice, Volume 2 (2022), 43.

  • Demetra George. Ancient Astrology in Theory and Practice, Volume 2 (2022), 47.

  • Demetra George. Ancient Astrology in Theory and Practice, Volume 2 (2022), 75.

  • Demetra George. Ancient Astrology in Theory and Practice, Volume 2 (2022), 91.

  • Demetra George. Ancient Astrology in Theory and Practice, Volume 2 (2022), 94.

Section

Ptolemaic Sign Relations

2 documented rules with 1 listed source.
Source texts

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940).

6 locator entries

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 44.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 49.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 57.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 73.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 79.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 81.

Ptolemaic Ascendant ruler witnesses the Ascendant

Ptolemynormalized condition bundleimplemented

When the Ascendant ruler sees the Ascendant by whole-sign ray, the chart's governing planet remains in direct sign-based relationship with the rising place.

Calculation notes
  1. Compare the signs using the configured Ptolemaic sign relationship table, including aversion, witnessing, and domicile or exaltation relationships where named.

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Planetary classical witnessing

Multi-sourcenormalized condition bundleimplemented

Two bodies in signs joined by conjunction, sextile, square, trine, or opposition are surfaced as witnessing by whole-sign ray.

Rule sources
20 locator entries

  • Chris Brennan. Hellenistic Astrology: The Study of Fate and Fortune (2017), 105.

  • Chris Brennan. Hellenistic Astrology: The Study of Fate and Fortune (2017), 123.

  • Chris Brennan. Hellenistic Astrology: The Study of Fate and Fortune (2017), 42.

  • Chris Brennan. Hellenistic Astrology: The Study of Fate and Fortune (2017), 43.

  • Chris Brennan. Hellenistic Astrology: The Study of Fate and Fortune (2017), 73.

  • Chris Brennan. Hellenistic Astrology: The Study of Fate and Fortune (2017), 85.

  • Chris Brennan. Hellenistic Astrology: The Study of Fate and Fortune (2017), 95.

  • Demetra George. Ancient Astrology in Theory and Practice, Volume 2 (2022), 105.

  • Demetra George. Ancient Astrology in Theory and Practice, Volume 2 (2022), 126.

  • Demetra George. Ancient Astrology in Theory and Practice, Volume 2 (2022), 43.

  • Demetra George. Ancient Astrology in Theory and Practice, Volume 2 (2022), 47.

  • Demetra George. Ancient Astrology in Theory and Practice, Volume 2 (2022), 75.

  • Demetra George. Ancient Astrology in Theory and Practice, Volume 2 (2022), 91.

  • Demetra George. Ancient Astrology in Theory and Practice, Volume 2 (2022), 94.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 44.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 49.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 57.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 73.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 79.

  • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 81.

  • Measure sign-based or configured aspect testimony from a body to the Ascendant.
    • Rule sources
    6 locator entries

    • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 44.

    • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 49.

    • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 57.

    • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 73.

    • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 79.

    • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 81.

    Ptolemaic sect light witnesses the Ascendant

    Ptolemynormalized condition bundleimplemented

    When the sect light sees the Ascendant by whole-sign ray, the chart's primary luminary remains directly configured with the rising place.

    Implemented calculation
    1. Compare the signs using the configured Ptolemaic sign relationship table, including aversion, witnessing, and domicile or exaltation relationships where named.
    Rule sources
    6 locator entries

    • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 44.

    • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 49.

    • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 57.

    • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 73.

    • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 79.

    • Claudius Ptolemy. Tetrabiblos, trans. F. E. Robbins (1940), 81.