See your Sun, Moon, Rising sign and all planetary positions. Powered by Swiss Ephemeris.
A birth chart — also called a natal chart — is an astronomical map of where every planet was positioned at the exact moment you were born, as seen from your birth location. Think of it as a snapshot of the entire solar system frozen in time at the instant you took your first breath. That snapshot is unique to you. No two people born at different times and places will have the same chart.
The three most important placements in any birth chart are called the Big Three. Your Sun sign represents your core identity — the qualities you grow into and the energy you radiate. Your Moon sign reveals your emotional inner world — how you process feelings, what makes you feel secure, and the private self that only close people see. Your Rising sign (Ascendant) is the mask you wear in public — the first impression you make and how others perceive you before they know you well.
Beyond the Big Three, a complete birth chart includes all 10 classical and modern planets, the North Node, Chiron, 12 houses (areas of life), and the angular relationships (aspects) between planets. Each piece adds a layer of nuance. Your Mercury sign shapes how you think and communicate. Your Venus sign shapes how you love and what you value. Together, these placements create a detailed portrait that no single sign can capture. Not sure of your personality type? Try our free personality assessment for another angle on self-understanding.
Each planet governs a different dimension of your personality and life experience. The sign a planet occupies colors how that energy expresses, while the house it falls in shows where in life it plays out.
Core identity, ego, life force. Your Sun sign is the foundation of who you are — your fundamental drive, the energy you radiate, and what you're here to become. It shapes your sense of purpose and the qualities you develop throughout life.
Emotions, instincts, inner self. The Moon reveals your emotional nature — how you process feelings, what makes you feel safe, and your automatic responses to the world. It represents the private self that only close people see.
Communication, thinking, learning style. Mercury shapes how you process and share information — your speaking style, what kind of conversations energize you, and how you learn best. It rules both logical and creative expression.
Love, beauty, values, money. Venus governs what you find attractive, how you express affection, your aesthetic preferences, and your relationship with pleasure and material comfort. It reveals your love language and what you value most.
Drive, ambition, conflict style. Mars is your engine — how you assert yourself, pursue goals, handle anger, and compete. It shows whether you charge ahead or strategize first, and what kind of challenges fuel you rather than drain you.
Growth, luck, philosophy. Jupiter expands whatever it touches. It reveals where you find abundance, your natural optimism, your philosophical outlook, and the areas of life where opportunities seem to find you.
Discipline, limitations, life lessons. Saturn is the great teacher. It shows where you face your hardest challenges, where discipline is required, and the structures you need to build. Saturn's lessons are difficult but they create lasting strength.
Innovation, rebellion, sudden change. Uranus breaks patterns and demands authenticity. It shows where you're unconventional, where sudden breakthroughs occur, and the areas of life where you refuse to follow the crowd.
Intuition, dreams, spirituality. Neptune dissolves boundaries between the real and the imagined. It governs your connection to creativity, spirituality, compassion, and the intangible. It also shows where you might deceive yourself or be deceived.
Transformation, power, the subconscious. Pluto governs deep transformation — the cycles of destruction and rebirth in your life. It reveals where you hold power, where power dynamics affect you, and the parts of yourself you must confront.
Life purpose, growth direction. The North Node is not a planet but a mathematical point where the Moon's orbit crosses the ecliptic. It points toward the qualities and experiences your soul is growing toward in this lifetime — the unfamiliar territory that leads to fulfillment.
Core wound, healing path. Chiron represents your deepest wound — an area of life where you carry pain that doesn't fully heal but becomes a source of wisdom. Through your own struggle, you develop the ability to help others with similar wounds.
Every zodiac sign belongs to one of four elements and one of three modalities. The balance of elements and modalities in your chart reveals your temperament at a glance — whether you lead with passion, practicality, intellect, or emotion, and whether you initiate, sustain, or adapt.
Passionate, energetic, confident, spontaneous. Fire signs act on instinct, inspire others, and bring warmth and dynamism to everything they touch.
Practical, grounded, reliable, sensory. Earth signs build things that last, value tangible results, and bring stability and realism to the table.
Intellectual, social, communicative, conceptual. Air signs live in the world of ideas, thrive on connection and conversation, and bring perspective and objectivity.
Emotional, intuitive, empathetic, deep. Water signs navigate the unseen currents of feeling, process the world through emotion, and bring depth and compassion.
Initiators. Cardinal signs start things — new projects, new seasons, new directions. They lead naturally and get restless without forward momentum.
Sustainers. Fixed signs maintain and deepen what Cardinal signs started. They bring determination, loyalty, and sometimes stubbornness.
Adapters. Mutable signs are flexible, resourceful, and thrive in change. They close out cycles and prepare for what comes next.
A chart heavy in Fire and Cardinal energy points to a driven initiator. A chart dominated by Water and Fixed energy suggests deep emotional persistence. Most people have a mix — the balance tells the story. Get your full personality profile with Know Your Human to see how your natal chart connects to 10 other personality frameworks.
Your birth time determines two critical pieces of your chart: the Rising sign (Ascendant) and the house placements of every planet. The Ascendant changes roughly every two hours, so even a 30-minute difference can shift it to a different sign entirely — and with it, the entire house system rotates. Without an accurate birth time, these placements become approximations at best.
The Moon also moves fast — about 12 to 14 degrees per day. If you were born near a sign boundary, a few hours can mean the difference between a Taurus Moon and a Gemini Moon, which are very different emotional natures. The other planets move slowly enough that the date alone is sufficient for accurate positions.
If you don't know your birth time, this calculator will still give you accurate Sun sign, planetary positions, and aspects. It defaults to noon, which minimizes the maximum possible error for the Moon. For the most complete and accurate chart, check your birth certificate — many countries include time of birth. Some hospitals and civil registries keep records even when the certificate does not. See how personality types work with AI for a different perspective on self-knowledge.