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Synastry & Composite

CompatibilityNatal Charts

Compare two personal star charts to see how two planetary energies meet — in love, marriage, partnership, and the journey of growth.

You

First person

Accurate birth time helps calculate Ascendant & houses more precisely

Partner

Second person

Accurate birth time helps calculate Ascendant & houses more precisely

Overview Aspects

Comprehensive Comparison System

Each compatibility analysis passes through 6 layers of astrological interpretation — from planetary aspects to the composite chart — forming a complete picture of how two energies meet.

Synastry — Cross Aspects

Overlay two star charts to analyze planetary aspects between two people: Venus–Mars, Sun–Moon, Saturn–Ascendant — determining attraction, conflict, and karmic bonds.

Overlay — House Overlay

Analyze which house one person's planets fall into in the other's chart — revealing which life area they touch: finances, emotions, career, or spirituality.

Composite — Combined Chart

Create a midpoint chart representing the relationship itself as an independent entity — analyzing strengths, weaknesses, and growth potential of 'us'.

Minor Planets & Asteroids

Analyze influence of planets beyond the main ones: Chiron (wounds & healing), Juno (commitment), Vertex (destiny) in the interaction between two people.

Parallel Transits

Compare transit cycles (Progressions & Solar Return) of two people — identifying when 'both flourish', are out of sync, or in a shared challenging phase.

Overall Compatibility Score

Aggregate harmony scores by dimension: emotional, financial, communication, physical attraction, and spiritual — displayed visually to see the relationship balance.

12 Chart Houses

Compare 12 Houses Between Two People

Each house reflects a distinct life domain. The house position comparison system clarifies interaction, support, and mutual influence.

House 1 · Ascendant

Identity & First Impressions

Planets landing here shape how the two people see each other from the very first meeting — physical attraction, personal energy, and impact on self-identity.

House 2 · Finances

Money & Values

Reveals how one person influences the other's finances, possessions, and value system — who brings prosperity and who creates financial burden.

House 3 · Communication

Mindset & Connection

The degree of harmony in communication, thinking style, and information sharing — whether the two easily understand each other or frequently misunderstand.

House 4 · Home & Family

Home & Roots

How the other person touches the family and past realm — creating a sense of safety and belonging, or stirring up childhood wounds.

House 5 · Love

Creativity & Romance

The most important zone for romance: romantic attraction, joy, creativity together, and childbearing potential — Venus here is a favorable sign.

House 6 · Work

Work & Health

How the two work together in daily practical life — habits, shared health, and division of practical responsibilities.

House 7 · Marriage

Partnership & Commitment

The most important house for marriage and formal partnership — planets here suggest the other person is your "opposite self" and how suited you are for a long-term journey together.

House 8 · Transformation

Depth & Karmic Bonds

The deepest zone of intimacy: shared resources, secrets, soul transformation, and karmic ties — Pluto here creates an intense, inexplicable attraction.

House 9 · Philosophy

Vision & Expansion

The degree of alignment in worldview, beliefs, and aspirations for expansion — Jupiter here brings joy in learning and exploring new horizons together.

House 10 · Midheaven

Career & Reputation

How the other person affects your career, reputation, and big goals — who lifts your ambitions and who creates obstacles on the path to success.

House 11 · Community

Friends & Hopes

The overlap in friend circles, social networks, and shared hopes — whether the two share the same community outlook or belong to different social circles.

House 12 · Spirituality

Hidden Depths & Karma

The most mystical zone: unconscious matters, past karma, secrets, and spiritual connection — Neptune here creates a bond that reason cannot explain.

20 Relationship Groups

In-Depth Analysis System

Beyond basic compatibility, AI analyzes 20 specific relationship groups for a comprehensive, sharp picture.

Spouses

Analyzes Venus–Mars and Moon–Sun: physical attraction, emotional nurturing, and Saturn–Juno indicators suggesting lasting marital commitment.

Lovers

Evaluates romantic attraction through Venus–Ascendant, Moon–Venus, and romance asteroids — determining whether there's "love at first sight" or just ordinary compatibility.

Parent & Child

Analyzes Moon (nurturing) and Saturn (discipline) between the two charts — revealing patterns of conditional love, generational wounds, and paths to healing.

Business Partners

The Jupiter–Saturn pair determines growth and discipline; Sun–Mercury clarifies goal alignment — analyzing financial indicators and shared strategic vision.

Boss & Employee

Sun–Saturn reveals the power structure: who directs and who executes — analyzing the risk of power conflicts and potential for advancement under this leadership.

Colleagues

Mercury (communication, thinking) and Mars (energy, action) — determining whether the two work together complementarily or competitively, and their natural collaboration style.

Rivals

Mars–Pluto exposes the balance of power, competitive instinct, and dominance potential — identifying weaknesses and calculating strategic advantage in confrontation.

Key Client

Jupiter brings opportunity and expansion; Venus creates satisfaction and perceived value — analyzing long-term reliability and the risk of client loss based on planetary cycles.

Siblings

Mercury (communication) and Mars (competition) in sibling interaction — assessing harmony, sibling rivalry for family status, and long-term mutual support potential.

Best Friends

Moon creates deep empathy; Jupiter brings joy and shared growth — analyzing shared values and the degree of loyalty through challenges.

Startup Co-Founders

Sun–Mars ignites initial energy; Uranus brings innovation and breakthroughs — assessing the ability to weather early chaos together and build a company culture.

Co-Founders

Sun reveals alignment on leadership vision; Uranus–Pluto divides the roles of innovation and power — who is the visionary and who is the executor among co-founders.

Shareholders

Jupiter–Saturn guides growth versus risk-averse conservatism; Pluto reveals hidden control levels and resource transformation potential — analyzing long-term investment alignment.

Mentor

Mercury–Jupiter builds an intellectual and visionary bridge; Saturn ensures knowledge is transmitted sustainably — assessing learning capacity and absorption speed from the mentor.

Teacher & Student

Mercury–Jupiter suggests compatibility in teaching–learning styles; Saturn determines discipline and commitment — analyzing whether the teacher-student relationship produces real growth.

Employment Contract

Saturn determines contract durability across 7–14–21 year cycles; Mars reflects the level of enthusiasm — forecasting when the contract is likely to break down or renew favorably.

Strategic Partner

Jupiter–Saturn balances vision and execution; the North Node reveals a shared future direction — assessing alignment on long-term goals and the potential to break through together.

Old Classmates

Moon creates memories and emotional bonds from the past; Saturn suggests responsibility and lasting loyalty — analyzing whether the old friendship still holds vitality in the present context.

Illicit Affair

Venus–Mars creates irresistible attraction; Neptune brings a veil of illusion and enchantment — analyzing karmic indicators (Node, Chiron) and the karmic consequences of this relationship.

International Partnership

Jupiter expands cross-cultural vision; Mercury ensures communication overcomes language and thinking barriers — assessing sustainable cooperation indicators when the two come from different cultural backgrounds.