✦ Synastry
When two charts dance together
Synastry is the astrological art of comparison — a technique that overlays the natal charts of two people to see how their energies meet. It is the most accurate astrological method for studying a relationship.
It shows which planets of one person “touch” the planets of the other and how — harmoniously, challengingly or transformatively. You can see clearly where magnetic attraction, tenderness and recurring tensions live.
Synastry works for any kind of relationship — romantic, family, friendship, business. It doesn't say “you're a match” or “you're not” — it gives you the map of the connection.
Attraction
What draws you to one another — on an instinctive level.
Dynamics
The field of tension in which you grow together.
Longevity
Which aspects support a long-term bond.
✦ Quick test
How compatible are you, really?
5 short questions — an orientation before the in-depth synastry analysis.
How do you feel when you're together in silence?
Your compatibility
Enter the birth data of both partners
To build the synastry chart we need the full birth data of both partners.
✦ Related categories
Continue your path
Written and reviewed by the Astreya team — astrologers, Human Design analysts and numerologists with practical experience. All calculations use Swiss Ephemeris (astronomical-grade precision).
Important: Astrology, Human Design and numerology are tools for self-knowledge and spiritual exploration. They are not a substitute for medical, psychological or financial advice. Always trust your own judgment and seek professional help when needed.