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Ptolemy's Tetrabiblos

Chapter 22: CHAPTER XIX SIGNS INCONJUNCT
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About This Book

A systematic astrological treatise that explains how the sun, moon, planets and fixed stars are understood to affect weather, geography and human affairs. It lays out technical vocabulary and procedures—signs, houses, aspects, triplicities, exaltations and terms—then applies them across four parts: foundational principles and methods; climatic and regional forecasts including eclipses and atmospheric phenomena; rules for casting nativities and interpreting birth, temperament, health and longevity; and worked examples with tables and commentary. The work emphasizes a disciplined, observational approach to linking astronomical positions with types and timings of terrestrial events.

CHAPTER XIX
SIGNS INCONJUNCT

All signs, between which there does not exist any familiarity in any of the modes above specified, are inconjunct and separated.

For instance, all signs are inconjunct which are neither commanding nor obeying, and not beholding each other nor of equal power, as well as all signs which contain between them the space of one sign only, or the space of five signs, and which do not at all share in any of the four prescribed configurations: viz. the opposition, the trine, the quartile, and the sextile. All parts which are distant from each other in the space of one sign only are considered inconjunct, because they are averted, as it were, from each other; and because, although the said space between them may extend into two signs, the whole only contains an angle equal to that of one sign: all parts distant from each other in the space of five signs are also considered inconjunct, because they divide the whole circle into unequal parts; whereas the spaces contained in the configurations above mentioned, viz. the opposition, trine, quartile, and sextile, produce aliquot divisions.[47]