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Opposition in Astrology: The 6-Sign Aspect

· KLifeMap.AI

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An opposition is two planets six signs apart in the zodiac — the maximum possible distance, for example one in Aries and one in Libra.

The widest ratio in the classical scheme

In Tetrabiblos I.14, Ptolemy assigns opposition the ratio 2:1 — the widest of the musical ratios he uses to explain the five aspects, matching the fact that it is the widest possible separation in the zodiac. Two planets in opposition sit at literally opposite points of the chart, which is the classical reasoning behind reading it as a tension between two poles rather than either planet's theme quietly winning out.

Sign to sign, not degree to degree

We read aspects the way the Hellenistic sources describe them — sign to sign, not degree to degree. Robert Hand, editing Paulus Alexandrinus's Introductory Matters (tr. Robert Schmidt, Project Hindsight), puts it plainly: "There do not seem to be any orbs as they are known in the modern West. Any point in Aries is in trine to any point in Leo or Sagittarius, regardless of orb. … Despite misleading footnotes by modern commentators, Ptolemy also seems to have used aspects from sign to sign." The "orb tables" many sites use today (Saturn 10°, Jupiter 12°, and so on) trace back to a 19th-century translator's footnote, not to Ptolemy himself. We show the exact degree difference too, as background information — but it is not what decides whether the aspect exists.

For an opposition, this means any point in Aries opposes any point in Libra, regardless of exact degree.

What we do and do not add

We calculate every opposition in your chart from your actual birth data, and show the exact degree gap as reference information. We don't read an opposition as a single planet's problem — it is a relationship between two specific planets and the houses they occupy, and we show both sides.

KLifeMap.AI is a self-understanding platform: a rule-based judgment engine grounded in classical Korean BaZi decides first, and AI only explains the result afterward.

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