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.

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Zi Wei synastry

Set two Zi Wei charts side by side and read the relationship the tool actually compares.

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Sources and editorial basis

  1. 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. 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. 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.