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Caelum Stratagem

The Tenth-Century Shortcut in Reverse:  The Deception of Twentieth-Century Celestial Partitioning

In 1971, the Koch method of celestial partitioning, developed by Walter Koch…

Learn moreThe Tenth-Century Shortcut in Reverse:  The Deception of Twentieth-Century Celestial Partitioning
  • David E. Bustamante
  • October 13, 2026

El atajo del siglo diez al revés: el engaño de la partición celeste del siglo veinte

En 1971, el método de partición celeste de Walter Koch (1895-1970) fue…

Learn moreEl atajo del siglo diez al revés: el engaño de la partición celeste del siglo veinte
  • David E. Bustamante
  • October 12, 2026

The Master Stellarium-SFG Manual: A Cuspal Verification Instrument

Celestial partitioning frameworks are not abstract mathematical exercises; they purport to calculate…

Learn moreThe Master Stellarium-SFG Manual: A Cuspal Verification Instrument
  • David E. Bustamante
  • October 2, 2026

El Manual Maestro Stellarium-SFG: Un instrumento de verificación de cúspides

Los métodos de partición celeste no constituyen ejercicios matemáticos abstractos; se acusan…

Learn moreEl Manual Maestro Stellarium-SFG: Un instrumento de verificación de cúspides
  • David E. Bustamante
  • October 2, 2026

A Historical Indictment: Jose Lebrón’s 1976 Autopsy of the Polich-Page Method

This summer marks 50 years since Wendel Polich formally presented his method…

Learn moreA Historical Indictment: Jose Lebrón’s 1976 Autopsy of the Polich-Page Method
  • David E. Bustamante
  • September 13, 2026

Una imputación histórica: la autopsia del método de Polich-Page, de José Lebrón (1976)

Este verano marca el quincuagésimo aniversario desde que Wendel Polich presentó formalmente…

Learn moreUna imputación histórica: la autopsia del método de Polich-Page, de José Lebrón (1976)
  • David E. Bustamante
  • September 13, 2026
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Translator’s Preface to Brennan’s ‘Hellenistic Astrology’: A Study in Technical Transposition

March 17, 2026

Declaration of Research Methodology: The Primacy of Forensic Geometry

February 10, 2026

Las direcciones primarias y el requisito temporal natural ineludible del tiempo de llegada

December 15, 2025

The Primary Directions and the Ineluctable Natural Temporal Requisite of the Time of Arrival

December 15, 2025

Trisección del tiempo de ascensión: diferencias fundamentales entre Placidus, Alcabitius y Koch

December 10, 2025

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Shun much more the reproach of having suppressed strong opinions than that of having been too gentle in evaluating them

Max Planck (1858-1947)

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Translator’s Preface to Brennan’s ‘Hellenistic Astrology’: A Study in Technical Transposition
Declaration of Research Methodology: The Primacy of Forensic Geometry
Las direcciones primarias y el requisito temporal natural ineludible del tiempo de llegada
Trisección del tiempo de ascensión: diferencias fundamentales entre Placidus, Alcabitius y Koch

Popular Posts

The Tenth-Century Shortcut in Reverse:  The Deception of Twentieth-Century Celestial Partitioning

October 13, 2026

El atajo del siglo diez al revés: el engaño de la partición celeste del siglo veinte

October 12, 2026

The Master Stellarium-SFG Manual: A Cuspal Verification Instrument

October 2, 2026
Interesting fact

The translator of Ptolemy’s Tetrabiblos, F.E. Robbins (1940, Loeb Classical Library), provided a description of the Ptolemaic/Placidus method of celestial partition that is notably more precise than those offered by subsequent commentators, including figures such as Colin Evans, Charles E.O. Carter, and Ralph W. Holden. For the specific details on the Ptolemaic/Placidus method, refer to the Tetrabiblos, Book III, Chapter 10, pages 286-288, footnote 3.

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Useful Information

Until the 18th century, the practices of astrology and astronomy remained largely undelineated or indistinguishable. Even though this integration began to dissolve following the scientific revolutions, after the Second Industrial Revolution, the discipline took an unfortunate turn, becoming largely synonymous with the generalised Sun-sign columns found in newspapers and magazines, often termed “Sun-sign astrology.” This popular construct can be more accurately described as a consumer product of contemporary western capitalist societies, rendering the designation “astrology” imprecise for serious discourse. Methodologically, traditional astrology encompasses the foundational and content-rich periods of the Hellenistic era and the Middle Ages, whereas the more sophisticated and/or technical developments of the 16th and 17th centuries (Renaissance) can be categorised as early modern or late traditional astrology. The discipline’s standing deteriorated significantly during the 19th century, period correctly termed contemporary astrology.

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