Zi Wei Dou Shu Knowledge Base · 紫微斗數知識庫

Zi Wei Dou Shu (紫微斗數, "Purple Star Astrology") is a traditional Chinese astrology system that maps a person’s birth date and hour onto a chart of twelve palaces populated by fourteen major stars and many minor stars, modified by the Four Transformations and read over decade-luck cycles set by the Five Element Bureau.

This is the static knowledge layer in Open Knowledge Format: stable, human- and agent-readable definitions. The dynamic layer — casting an actual chart from a birth date — runs 100% in the browser at https://localpapa.com/tools/ziwei.html, with nothing uploaded.

Navigate

• The 14 Major Stars — 十四主星
• The Twelve Palaces — 十二宮
• The Four Transformations — 生年四化
• The Five Element Bureaus — 五行局
• The Trine & Opposition — 三方四正 (how palaces shine into the Life palace)
• Decade Luck — 大限 (ten-year periods and the three layers of transformation)
• Annual Fortune — 流年 (reading a single year, with all 48 landing meanings)

How a chart is built

1. Convert the Gregorian birth date to the Chinese lunar date.
2. From lunar month and birth hour, fix the Life palace (命宮) and lay out the twelve palaces.
3. From the Life palace stem-branch, derive the Five Element Bureau.
4. From the bureau and lunar day, place Zi Wei, then the other 13 major stars and the minor stars.
5. From the birth-year stem, apply the Four Transformations.
6. From bureau number, gender and year yin/yang, lay out the decade-luck periods.

For entertainment and cultural reference. Zi Wei Dou Shu is interpretive and schools differ; this base reflects common mainstream usage.

Part of the LocalPapa knowledge pack. Tool: Zi Wei Dou Shu chart.

機器可讀原始檔（供 AI 檢索）：/okf/ziwei/index.md