Synastry
How two charts
speak to each other
Enter two sets of birth details to see the aspects between your charts — where you flow, where you spark, and where you grow.
☉ Sun & Moon connection
☽ Venus & Mars chemistry
♀ Aspects between charts
First person
Second person
What is synastry?
Synastry is the astrology of relationship. It compares two natal charts to see how each person's planets touch the other's — the conversation between two skies.
Harmonious aspects (trines and sextiles) tend to feel easy and supportive; conjunctions fuse and intensify; squares and oppositions create the friction and magnetism that make a bond dynamic. No single aspect makes or breaks a connection.
Treat the resonance score as a playful summary, not a verdict. Real relationships are built, not predicted — the chart only shows the raw material.