Also known as Purple Star Astrology — build your full 12-Palace natal chart, read all 14 major stars, and get an AI interpretation built for people who take this seriously.
Zi Wei Dou Shu (紫微斗数) means “Purple Star Numerology” — named after Zi Wei, the Emperor star, the most important point on the entire chart. Where classical Western astrology reads planets, Zi Wei Dou Shu plots 14 major stars and dozens of supporting stars into 12 houses called Palaces, using your exact birth date, hour, and gender. The result isn’t a horoscope — it’s a fixed structural chart of your personality, relationships, career, and timing that a practitioner reads the way you’d read a floor plan.
No mysticism required. Just your birth data — and the exact hour, which is what most calculators get wrong.
Zi Wei — the Emperor — anchors every other placement on the wheel.
Birth hour changes your Life Palace. Get it approximately right and the chart is approximately wrong.
Your Zi Wei Dou Shu chart is a wheel divided into 12 Palaces — Self, Career, Wealth, Spouse, Health, and eight more — each one a life domain. Into those 12 Palaces, the system places 14 Major Stars (主星) plus dozens of Supporting and Minor stars (辅星/杂耀), each carrying its own brightness rank depending on where it lands. Read together — which stars sit in which Palace, at what brightness, with which Sihua mutagen attached — the chart becomes a structural map of a life.
Every Palace is a different question.
| Use case | Question people bring | Where it lives |
|---|---|---|
| Career & Direction | “Is this the right move for my career?” | Career Palace |
| Love & Marriage | “What does my chart say about my relationships?” | Spouse Palace |
| Money | “Where does my money actually go?” | Wealth Palace |
| Self-Understanding | “Why do I keep reacting this way?” | Self / Soul Palace (命宫, Ming Gong) |
| Family | “What’s really going on with my parents, my kids?” | Parents, Children, Siblings Palaces |
| Timing | “Is this a good decade for me?” | Decade Limits |
Built for the same rigor as a professional Zi Wei Dou Shu reading, not a novelty generator.
Every Palace populated, positioned by your exact birth data.
Major, Supporting, and Minor stars, each with a brightness rank (庙旺得利平不陷).
Your foundational element and Zi Wei placement pacing number.
The two fixed stars that set inherent nature and physical constitution.
Lu (Prosperity), Quan (Authority), Ke (Recognition), Ji (Obstruction) — tracked per period.
Drill into any period and see how it interacts with your natal chart.
A built-in reading for every section, in plain language.
This is the calculator itself, not a downloadable program — it runs entirely in your browser, on desktop or mobile, nothing to install.
Every life domain has its own house.
Your core personality, destiny, and overall life direction — the Palace every other Palace is read in relation to.
Siblings and close peers — your earliest support network, and how you learned to share space with equals.
Marriage and romantic partnership — who you’re drawn to, how you love, and what a relationship costs and gives you.
Children, creativity, and what you bring into being — biological or otherwise.
Income, money management, and financial fortune — not just how much, but how it moves through your hands.
Physical health and the body — inherited vulnerabilities and where your vitality actually lives.
Travel, relocation, and the opportunities that only show up once you leave your home base.
Friendships, colleagues, and subordinates — your social network and who you can actually rely on.
Profession, achievement, and how your working life unfolds — the Palace most people check first.
Real estate, home, and family assets — where and how you settle.
Inner mental state, values, and the blessings you carry through life — your baseline for contentment.
Your relationship with parents and elders, authority figures, and what you inherited before you had a say in it.
Where each star lands — and at what brightness — shapes how its meaning plays out.
The Emperor star. Wherever it sits becomes the most important seat on your chart — leadership instinct, and a need to be respected, not just liked.
The mind in motion. Sharp, adaptive, always three moves ahead — sometimes to the point of overthinking.
Visibility and warmth. Strong here means you’re seen, generous with your energy, and carry a father-figure quality whether or not you have kids.
Money and discipline in one star. Direct, decisive, better with numbers than with feelings.
The peacemaker. Easygoing, kind, allergic to conflict — sometimes to a fault.
Intensity. Ambitious and magnetic, but runs hot — this star doesn’t do “moderate.”
The vault. Steady, accumulating, conservative with resources — the opposite temperament to Qi Sha across the chart.
Nurture and home. Sensitive, domestic, carries a mother-figure quality regardless of gender.
Appetite and charm. Magnetic, adventurous, drawn to more of everything — pleasure, people, experience.
The mouth star. Sharp-tongued and analytical — a natural debater, sometimes a natural critic.
The diplomat. Fair, supportive, works best as the power behind someone else’s throne.
The elder. Protective, principled, the one who ends up giving everyone else advice.
The lone wolf. Bold, independent, comfortable with risk most people would avoid.
The demolisher. Restless, transformative — tears down what isn’t working, even when that’s uncomfortable to watch.
The full calculator also covers all 66 stars — Supporting stars like Wen Chang and Lu Cun, Minor stars, and auxiliary stars like Hong Luan and the “Lonely Star” pair, Gu Chen and Gua Su.
No two charts are alike, because it’s never one star or one Palace in isolation — it’s which stars land in which Palace, at what brightness, carrying which Sihua mutagen. Zi Wei in your Career Palace reads completely differently than Zi Wei in your Spouse Palace. That’s the actual skill in reading a Zi Wei Dou Shu chart, and it’s what the calculator lays out for you automatically, Palace by Palace, with an AI reading for each combination.
Your entire life’s timeline, mapped.
Alongside your fixed natal chart, Zi Wei Dou Shu tracks Decade Limits (大限) — roughly ten-year chapters that move a different set of stars through your Palaces as you age. This is the “10 year luck” layer: it’s how the system answers “is this a good decade for my career” or “why did everything shift five years ago.”
See which stars are active for that ~10-year chapter.
Zoom to the Annual Cycle layer.
Month, Day, and even Hour layers overlay on top.
Reading a Zi Wei Dou Shu chart takes years to learn properly — 12 Palaces, 66 stars, brightness ranks, and Sihua interactions is a lot to hold in your head. Every section of the Baguame Zi Wei Dou Shu calculator has a built-in AI Analysis button: one tap, and you get a personalized, chart-specific interpretation instead of a generic star dictionary.
Two different systems, one common search.
If you landed here searching “flying star zi wei dou shu,” it’s worth clearing up: Zi Wei Dou Shu is a personal astrology system, read from your birth data. Flying Stars is a Feng Shui system, read from a building’s construction date and compass facing. Some schools of Feng Shui borrow Zi Wei Dou Shu terminology, which is where the two get tangled in search — but they answer different questions. Zi Wei Dou Shu tells you about you. Flying Stars tells you about your space.
Build a chart once, use it everywhere.
Create a Resident once — enter a person’s name and birth data — and instantly use them across every calculator on the platform: BaZi, Eight Mansions, and now Zi Wei Dou Shu, all reading from the same birth profile. No re-entering the same date five times.
Zi Wei Dou Shu (紫微斗数), “Purple Star Numerology,” is a classical Chinese astrology system that plots 14 major stars into 12 life-domain Palaces based on your exact birth date, hour, and gender. It’s not fortune-telling — it’s a structural framework, closer to reading a blueprint than a prediction.
Accuracy depends entirely on input precision — mainly your birth hour, which determines your Life Palace and shifts every star placement from there. Given the correct date, time, and location, the chart itself is calculated deterministically from classical rules; there’s no ambiguity in the math, only in how precisely you know your birth data.
Baguame’s Zi Wei Dou Shu calculator runs fully in your browser — no app download needed, and it’s optimized for mobile, so it works the same on your phone as your desktop.
Not yet as a one-click PDF export — but your chart saves permanently to your account, so you can pull it up anytime, and your browser’s own print/save-as-PDF works fine in the meantime for a physical copy.
Building your chart is free. AI chart interpretations use your account’s coin balance — new accounts start with free coins, and more can be purchased if you want deeper readings across every Palace and period.
Most classical Zi Wei Dou Shu texts exist only in Chinese, which is part of why the system has a steep learning curve in English. The AI Chart Interpretation on every Baguame chart is built to close that gap — it explains your actual placements in plain language instead of pointing you at a glossary.
Your Spouse Palace is where relationship patterns live — which stars sit there, and at what brightness, shapes how you love and who you’re drawn to. Baguame doesn’t currently run a dedicated side-by-side compatibility mode for Zi Wei Dou Shu (it does for BaZi), but the AI Chart Interpretation on your Spouse Palace covers this in detail.
In classical practice, some readers use the Spouse Palace’s stars and elements to infer physical or personality traits of a future or current partner. It’s one of the more debated interpretive techniques in the system — the calculator surfaces the Palace’s stars and brightness; how far you take that interpretation is a matter of school and practitioner.
That’s Gu Chen (孤辰, the male-associated Lonely Star) and Gua Su (寡宿, the female-associated version) — two Minor stars linked to solitude or independence when they land in relationship-relevant Palaces. Both are tracked in the full 66-star calculator.
Most free tools online generate a static chart image and stop there. Baguame gives you an interactive chart with AI interpretation on every Palace, tracks the full Decade → Year → Month → Day → Hour period overlay, and saves your chart to an account so you’re not rebuilding it every visit.
No — it’s a web-based calculator. Nothing to download or install; it runs in any modern browser.
Whether you’re a student, a practitioner, or just curious — Zi Wei Dou Shu is more useful with an interactive chart in front of you than a static PDF.