Check Your Compatibility
Enter both birth details to discover your astrological compatibility, relationship strengths, emotional connection, and potential challenges.
What is Synastry?
Synastry, also known as relationship astrology, compares two birth charts to explore how two people connect. By analyzing planetary positions and aspects between your charts, it reveals potential patterns in emotional compatibility, communication, attraction, and relationship dynamics.
Discover where your energies naturally align, what challenges may arise, and how you can better understand each other.
Emotional Connection
Explore how your Moon signs influence emotional understanding, comfort, and intimacy.
Love & Attraction
Discover how Venus and Mars shape romantic chemistry, affection, and desire.
Relationship Dynamics
Understand planetary aspects that highlight harmony, growth, and potential challenges.
Your personal synastry chart
Discover What the Stars Reveal About Your Relationship
Explore your astrological compatibility and discover how your birth charts connect — from emotional chemistry and romantic attraction to communication, strengths, and relationship potential.
Compatibility Overview
The bigger pictureDiscover your overall compatibility and explore how you connect emotionally, romantically, and intellectually.
Big Three Connection
Sun, Moon & RisingSee how your Sun, Moon, and Rising signs interact, shaping your personalities, emotional needs, and first impressions.
Love & Attraction
Your romantic chemistryExplore romantic attraction, passion, intimacy, and the planetary influences behind your chemistry.
Relationship Dynamics
How you work togetherUnderstand how you communicate, support each other, navigate challenges, and grow as a couple.
Strengths & Challenges
Your growth potentialDiscover what brings you closer, where tensions may arise, and how your differences can inspire growth.
Planetary Connections
The deeper connectionExplore planetary aspects and house overlays to understand how each person's energy influences the other's life.
Relationship astrology
Synastry FAQ
Everything you need to know about synastry charts, planetary connections, and astrological relationship compatibility.
What is a synastry chart?
A synastry chart compares two birth charts to explore how the planets of two people interact. It highlights potential patterns in attraction, communication, emotional connection, and relationship dynamics.
What information do I need to calculate synastry?
The date, city, and ideally the time of birth for both people. Birth times make house overlays and Rising signs possible.
Can I calculate synastry without an exact birth time?
Yes. Planet-to-planet aspects still work without birth times; only Rising signs and house overlays need them.
What do planetary aspects mean in synastry?
Aspects are angles between one person's planets and the other's. Trines and sextiles tend to feel easy, while squares and oppositions bring tension that can also spark growth.
What are house overlays in synastry?
House overlays show which areas of your life the other person's planets fall into, revealing where you feel their influence most.
Can synastry predict whether a relationship will last?
No chart can guarantee an outcome. Synastry shows natural strengths and likely challenges; how you handle them is up to you both.