See your compatibility with our free synastry calculator, understand it deeply with professional consultation.
Inner ring, Person 1 · Outer ring, Person 2
Your Results Are Ready, But This Is Just the Beginning
The calculator shows you technical data. In professional synastry consultation, this data is transformed into your relationship's real dynamics, timing periods, and growth potential.
☏ Book via WhatsAppA synastry calculator lists the aspects between two charts. But the real story of your relationship goes far beyond these numbers.
CALCULATOR
Lists aspects and degrees
Gives general "compatible/difficult" labels
Provides a single snapshot
PROFESSIONAL CONSULTATION
Explains the practical impact of aspects on your relationship
Interprets strengths and challenges in depth
Reveals the growth periods of the relationship
Topics covered in your one-on-one Zoom consultation:
Brief Analysis of Two Natal Charts
Individual chart characteristics of both persons
Comparative Planet Placements and Aspects
Detailed interpretation of all significant synastry aspects
Strengths and Challenge Points in the Relationship
Practical interpretation of harmony and tension areas
Emotional, Mental, and Physical Compatibility Analysis
Compatibility assessment across different layers of the relationship
Composite Chart Assessment
Analysis of the relationship's own energy
Growth Periods of the Relationship
Important transit periods and timing analysis
📋 Required info: Birth date, time, and place of both persons · 🎥 Session recording sent after
Those Making Marriage Decisions
Support the most important decision of your life with astrological data.
Couples Going Through Difficult Times
Understand the root causes of difficulties in your relationship and paths to resolution.
Those Evaluating Business Partnerships
See your compatibility with your business partner and potential friction areas.
Those Who Want to Understand Family Relationships
The astrological map of parent-child or sibling dynamics.
Experiences of people who received synastry consultation
Synastry Consultation
Two natal charts + synastry + composite analysis included
No. The consultation can be done with one person. Birth information is sufficient; the other person does not need to attend the session.
Yes, analysis can be done even without birth time. However, much more detailed results are obtained when birth time is known, especially for Moon position and house placements.
The calculator lists technical data. In consultation, this data is interpreted by an experienced astrologer within the framework of your relationship's real dynamics, offering personalized guidance.
No. Synastry consultation can be applied to family relationships, business partnerships, and friendships in addition to romantic relationships.
Yes. The session conducted via Zoom is recorded and sent to you after the session. You can re-watch it anytime.
You can book an appointment via WhatsApp or make a secure payment with credit/debit card through Shopier. Bank transfer is also accepted.
Synastry is an astrological method of relationship analysis in which two birth charts are compared and the planetary aspects between them are analyzed. Two charts are overlaid and the aspects between planet pairs are examined to determine areas of compatibility and challenge potential.
If birth time is unknown, the calculation is done based on noon 12:00. Since Sun, Mercury, Venus, Mars, Jupiter, and Saturn positions change very little throughout the day, sufficient results can be obtained without birth time. However, since the Moon moves approximately 13 degrees per day, Moon calculations become much more precise when birth time is known.
Trine (120 degrees) and sextile (60 degrees) are traditionally harmonious aspects; they bring natural harmony and understanding. Square (90 degrees) is challenging, and opposition (180 degrees) creates tension. Conjunction (0 degrees) varies depending on the planets involved. However, there are no "bad" aspects; challenging aspects can bring growth and deepening.
Synastry overlays two charts and examines aspects, showing how each individual affects the other. Composite chart creates a single new chart from the midpoints of two charts and represents the relationship's own energy. A comprehensive analysis uses both together.
No. A low score indicates more challenge potential, but challenges can also bring growth and deepening. Many successful and long-lasting relationships thrive despite challenging aspects. What matters is managing challenges with awareness.
You've seen the calculator data. Now learn what this data truly means for your relationship.
☏ Book via WhatsAppSynastry is an ancient astrological technique in which two birth charts are overlaid and the planetary aspects between them are analyzed. Derived from the Greek words "syn" (together) and "astron" (star), synastry literally means "union of stars." It is considered one of the most fundamental and reliable methods of assessing relationship compatibility in classical astrology.
In a synastry analysis, the aspects that one person's planets make to the other person's planets are examined. These aspects reveal the dynamics, attraction areas, compatibility points, and potential growth areas between two people. Each planet pair represents a different dimension of the relationship: the Sun-Sun relationship shows core identity compatibility, the Moon-Venus relationship shows emotional and romantic connections, and the Mars-Saturn relationship shows action and boundary dynamics.
In Hellenistic and Medieval astrological traditions, synastry was used particularly for marriage compatibility and partnership analyses. From Ptolemy's Tetrabiblos to Abu Ma'shar's works, many classical sources explain chart comparison methods in detail. Classical astrologers considered the conditions of the Moon and Venus as the most important indicators of relationship compatibility.
In synastry, five fundamental aspects are examined. Conjunction (0 degrees) is the meeting of two planets at the same point and creates the most intense interaction. Sextile (60 degrees) is a harmonious and opportunity-rich energy. Square (90 degrees) creates tension and friction but also provides motivation for growth. Trine (120 degrees) is the most harmonious aspect, bringing natural harmony and understanding. Opposition (180 degrees) represents opposite poles; attraction can be strong but establishing balance requires effort.
Each aspect has an "orb" value, meaning a tolerance range. For example, an orb of plus or minus 8 degrees is used for conjunction, plus or minus 8 degrees for trine, and plus or minus 6 degrees for sextile. The tighter the aspect (the smaller the orb), the more strongly it is felt. A 1-degree trine carries a much more prominent sign of harmony than a 7-degree trine.
Synastry and composite chart are two different but complementary techniques in relationship astrology. Synastry overlays two charts and analyzes the aspects each planet pair makes to each other. This approach answers the question: "How do I affect you, and how do you affect me?"
Composite chart creates a single new chart from the midpoints of two charts. This chart represents the energy of the relationship itself. It answers the question: "What kind of entity are we together?" A comprehensive relationship analysis requires using both techniques together. With a professional consultation, you can evaluate all of these techniques.
About synastry and chart comparison
Synastry is the comparative study of two natal charts placed side by side, examining how the planets and sensitive points of one person interact with those of another through aspects and house overlays. A composite chart, by contrast, is a single derived chart constructed from the midpoints of corresponding planets in both charts and represents the relationship as an entity in its own right. The Davison relationship chart goes further still, casting a real chart for the midpoint in time and space between the two births. Each technique answers a different question: synastry shows how two individuals affect each other, while composite and Davison reveal the character of the bond itself.
Classical and modern astrologers agree that the heaviest weight belongs to luminary contacts (Sun-Moon, Sun-Sun, Moon-Moon), Venus-Mars connections, and aspects involving the Ascendant or its ruler. Conjunctions, oppositions, trines, squares and sextiles within tight orbs (typically under five degrees, with luminary aspects allowed wider) describe the chemistry between two charts, while saturnine aspects mark commitment, Jupiter-Venus contacts ease, and outer-planet contacts generation-defining transformation. Reading them together rather than in isolation reveals the true texture of the relationship.
A house overlay is created by placing one person's planets into the other person's twelve houses, showing the life-areas where each individual most strongly affects the other. Planets falling in a partner's first, fifth, seventh, eighth or tenth houses tend to produce the most felt and visible effects, while twelfth- or sixth-house overlays often work below the surface. Overlay analysis is older than aspect-based synastry and was already practiced by Hellenistic and Persian authors who studied "the placement of one nativity within another."
Classical synastry, drawing on Ptolemy, Dorotheus and the Persian-Arabic tradition, focuses on marriage indicators, sect-based dignity, fortune and friendship lots, and the testimonies of Venus, Mars, the Moon, the seventh place and its ruler. Modern psychological synastry, following Liz Greene, Stephen Arroyo and the post-Jungian school, adds depth-psychological readings of inner-planet and outer-planet contacts as mirrors of unconscious projection, attachment style and developmental needs. The two approaches are complementary rather than opposed: classical identifies whether and when, psychological explores why and how.
The reliability of a synastry analysis depends on having accurate birth data for both individuals: ideally date, exact time and place of birth for each, since house overlays, the Ascendant and angular contacts depend on a recorded birth time. Without a known time, the lunar position, the day-or-night chart determination and all angular synastry remain provisional, and only sign-based contacts between slow-moving planets can be safely interpreted. When both charts are well-timed, synastry is one of the most empirically observable techniques in astrology, with patterns repeatedly verified across thousands of relationship charts.