Synastry

Synastry compares two natal-chart to describe relationship dynamics. Practitioners use a bi-wheel natal-wheel (one chart inside the other) or overlay tables, then read inter-aspects between person A’s planets and person B’s.

What to weigh first

1. Luminaries — sun and moon contacts color recognition and emotional rhythm
2. Venus and Mars — attraction, chemistry, conflict style (venus, mars)
3. Angles — ascendant, midheaven, and 7th-house overlays when both birth times are reliable
4. Saturn — commitment, fear, longevity lessons
5. Outer planets — slow, generational undertones on personal planets

Technique notes

• Orbs: often match natal orbs or tighten 1°–2° for inter-chart contacts
• House overlays: person A’s planet in person B’s house-7 differs from house-12 emphasis
• Patterns: mutual chart-patterns (e.g. double grand trine) are rare but memorable
• Not deterministic: hard square aspects can accompany productive bonds; soft trine do not guarantee longevity

Beyond pairwise synastry

Some schools add composite charts (midpoint chart of the relationship) or Davison charts (time/space midpoint). This bundle focuses on classic pairwise synastry on the wheel. Timing layers: transits plus progressions per individual.

Return to overview or wheel-reading-order for single-chart reading first.