Zi Wei Dou Shu: chart structure and a learning path
This root page is the system overview and learning path. Free chart generation, “how to read a chart”, and star-by-star notes live on child pages or in the chart tool.
- English name
- Zi Wei Dou Shu
- Pinyin
- Zǐ Wēi Dǒu Shù
- Simplified
- 紫微斗数
- Traditional
- 紫微斗數
- Also called
- Purple Star Astrology · Ziwei Doushu
Editorial review: 2026-09-17 · Reviewed by fateshow · Editorial method
Overview
Zi Wei Dou Shu arranges birth data into twelve palaces, stars, four transformations, and timing layers under declared rules. Use this page for the map; use the tool for a personal chart.
Concept snapshot
Chart skeleton
Twelve moving palace names on fixed earthly-branch cells
Core entities
Fourteen major stars, plus auxiliaries
Relation structure
Self palace, two trine palaces, and the opposite palace
Learning order
Chart → locate → relate → check → time → apply
Explore concepts
Overview
Zi Wei Dou Shu: map of this section
This section unfolds Zi Wei Dou Shu in learning order: definition and inputs, then palaces and stars, and only then transformations, patterns, and timing. It is a map, not a chart result.
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Basics
Basics of the chart
Settle what Zi Wei Dou Shu is and which inputs a chart needs. If the hour is missing, stop here. Do not continue into a personal palace.
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History and texts
History and received texts
A text can check palace names, star names, and where a traditional wording comes from. It cannot prove that an event will happen, and it does not replace the live engine.
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Calculation differences
Why two Zi Wei charts differ
Two charts of the same birth can still differ. The gap is usually the year boundary, leap months, true solar time, or the transformation table, not which one is more psychic.
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Chart structure
Chart structure and how a chart is opened
The order is: hour branch, Life Palace, the twelve names, stars, then transformations. If the order slips, every later sentence drifts.
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Twelve palaces
The twelve palaces
The twelve palaces are the chart’s map of domains. Learn the names, then learn that those names travel around a fixed branch ring after the Life Palace is placed.
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Fourteen major stars
The fourteen major stars
A major star is a condition that occupies a palace. It is not a complete person. fateshow’s report dictionary describes tendencies and cautions in that same spirit.
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Auxiliaries and sha stars
Auxiliary stars and sha stars
Auxiliaries and sha stars modify the condition of the palace a major star occupies. They are not a second set of major stars, and they do not judge a life alone.
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Minor stars and spirits
Minor stars, spirits, and the twelve deities
Minor stars and spirits are the detail layer after the major stars. The Doctor’s twelve spirits are a traditional mark that rotates with the palaces. Detail does not overturn the palace and the major star.
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Palace geometry
Palace geometry and the conditions on a star
A star’s sentence comes from its palace, plus the trine, the opposite palace, and the other stars in the same cell. Geometry comes before the single star.
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Four transformations
The four transformations
Si hua are hua lu, hua quan, hua ke, and hua ji. They mark how a star is emphasised under a year stem. They are not four new major stars.
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Star groups and patterns
Star combinations and patterns
A pattern is a traditional name for several stars in particular palaces. The name is a shorthand, not a rank. If the stars are absent, the name cannot be used.
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How to read
How a bounded reading is made
A reading starts from the question and the palace, not from the brightest star on the page. If the order slips, the star becomes a conclusion that was written first.
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Timing layers
Luck periods and how they are used
Decade and annual periods are time layers on top of the natal chart. They move the emphasis. They do not replace the birth chart, and they do not name a day.
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Schools and rule variants
Schools and rule variants
Schools differ mostly in rules: star-placement verses, transformation tables, year boundaries. Align the rules before comparing readings. A difference in prose is not a difference in calculation.
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Use and safety
Use and safety
A Zi Wei chart can organise a question and a time layer. It cannot replace a medical, legal, or financial decision, and it cannot turn a symbol into something already on a calendar.
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What is Zi Wei Dou Shu?
Zi Wei Dou Shu is a traditional natal-chart system. Under a declared rule set it organises birth data into twelve palaces, major and auxiliary stars, si hua transformations, and luck periods. It is not a sun-sign horoscope, and it is not a single lucky-unlucky label for one star.
Calculation can confirm where a palace, star, or transformation lands under those rules. Symbolic meaning remains a conditional interpretation. Keep the actual placement, school differences, missing inputs, and real-world evidence in view.
- Check birth data, time zone, time precision, and the chart rules first.
- Read the topic palace together with its stars, trines, opposite palace, and si hua.
- Generate a chart when you need personal evidence; stay on wiki pages when you need the rule.
Learn the chart grammar first
A Zi Wei chart is a structure, not a list of independent star blurbs. Palace names move across fixed earthly-branch cells. Stars occupy those palaces. A theme is read with its trine and opposite palaces, not in isolation.
Learn structure, required inputs, the twelve palaces, and the fourteen major stars before adding si hua, auxiliaries, and luck periods.
Why fateshow publishes its chart rules
A chart in this wiki is a calculated object, not a personality label. fateshow uses the iztro engine. The minimum inputs are birth year, month, day, hour, and gender. You may enter a solar date or a declared lunar date. The hour is converted into a two-hour branch; 23:00 is treated as late Zi.
Schools may differ on year boundary, leap months, true solar time, transformation tables, and some star-placement verses. The same surface inputs can therefore yield different charts. fateshow records the engine version and the settings that change results so a chart can be recalculated and compared.
A beginner reading order
Name the question and the topic palace. Then read the stars in that palace, the full three-harmony and opposite structure, si hua, and only afterwards the luck periods.
A responsible reading says which chart facts it uses, which conditions weaken the claim, and what remains uncertain. It does not turn one symbol into a fixed character or a scheduled event.
Safety boundary
Traditional symbolism is a conditional reading frame. It is not medical, legal, or financial advice, and a single star or palace cannot replace the full chart, the declared settings, and the timing layer.
Use it in fateshow
Zi Wei chart
Cast a Zi Wei chart and read the palaces, stars, and transformations it prints.
Open tool →Zi Wei synastry
Set two Zi Wei charts side by side and read the relationship the tool actually compares.
Open tool →Sources and editorial basis
- 1. Ziwei Doushu Quanshu (received editions)
Used to cross-check palace names, star lists, and traditional wording. A received text can record a tradition; it cannot prove scientific validity or guarantee an event.
- 2. iztro Zi Wei Dou Shu engine
Supports only what the current fateshow configuration actually calculates: palace placement, major-star arrangements, and the recorded year-boundary, leap-month, and transformation settings. It does not prove that any traditional school is uniquely correct.
- 3. fateshow chart rule snapshot
Each generated report stores the engine settings that produced it. Compare those settings before treating two charts as the same calculation.