Calculation first
Synastry Chart Calculator With AI Interpretation
Create a synastry-style comparison from two birth charts.
Understand relationship dynamics through chart symbolism.
How it works
ChartLumen resolves birth place, timezone, and chart facts first. AI receives structured JSON, not raw birth details alone.
Example output
Venus-Mars and Moon-Mercury contacts are summarized as style differences and support points.
Safety note
Interpretations stay reflective and do not provide medical, legal, financial, crisis, or certainty-based future advice.
FAQ
Is this deterministic?
No. Synastry is presented as reflection.
Are compatibility reports deterministic?
No. They are framed as reflective communication prompts.