Key Synastry Aspects
Key Synastry Aspects
- Conjunctions show immediate recognition.
- Squares indicate friction that demands growth.
- Trines bring ease and harmony.
Backlink: Synastry Overview.
🧭 Synastry Inter-Aspects — Arithmetic
For bodies λ_A (chart A) and λ_B (chart B): Δ = |λ_A − λ_B| mod 360, d = min(Δ, 360 − Δ); an aspect of angle A is present when |d − A| ≤ orb. Use the vault aspect notes for each operator:
| Aspect | Angle | Suggested synastry orb |
|---|---|---|
| Conjunction | 0.0000° | 6–8° |
| Opposition | 180.0000° | 6–8° |
| Trine | 120.0000° | 6° |
| Square | 90.0000° | 6° |
| Sextile | 60.0000° | 4° |
| Inconjunction (Quincunx) | 150.0000° | 2–3° |
| Semisquare | 45.0000° | 2° |
| Sesquiquadrate (Sesquisquare) | 135.0000° | 2° |
| Quintile | 72.0000° | 1–2° |
| Septile | 51.4286° | 1° |
| Novile | 40.0000° | 1° |
Highest-weight contacts: luminaries, angles, chart rulers, Venus–Mars, Saturn, nodes.
Sources (method)
- William Lilly, Christian Astrology (London, 1647), Book I (houses, orbs p. 107, essential dignities table p. 104) — public domain; orb table transcribed at https://www.renaissanceastrology.com/aspects.html and https://www.skyscript.co.uk/aspectorbs.html
- Ronald C. Davison, Synastry: Understanding Human Relations Through Astrology (1977) — the Davison relationship chart (midpoint in time and space)