What are the Ten Major Stars?
The Ten Major Stars are the ten personality and behavioural patterns used in the Yang chart of Sanmei-gaku. They are derived by comparing the day stem with five specific stems in the Yin chart, then placing the results into the body diagram: centre, north, east, west, and south.
Contents
What the Ten Major Stars show
The Ten Major Stars translate relationships between stems in the Yin chart into the language of the Yang chart. The starting point is the day stem, also called the Day Master, which is read as the self.
More specifically, the day stem is compared with five points: the year stem, month stem, root hidden stem of the year branch, hidden stem of the month branch, and root hidden stem of the day branch. These five comparisons become the north, south, east, centre, and west positions of the Yang body chart.
The stars are not simple personality labels. They describe how energy appears in human relationships: protecting one's ground, expressing oneself, attracting people and resources, taking action and responsibility, and learning from knowledge or change.
A star should not be read in isolation. Its meaning changes depending on where it appears in the body chart, whether it is the central star, whether the same star repeats, and how it fits with the Yin chart as a whole.
The Day Master is fixed as the self. The five major-star positions are derived by comparing it with the year stem, month stem, year-branch root, month hidden stem, and day-branch root.
| Layer | Day | Month | Year |
|---|---|---|---|
| Stem | Yi = self | Xin → South | Bing → North |
| Branch | Boar | Rabbit | Tiger |
| Hidden/root | Ren → West | Yi → Center | Jia → East |
The black Yi is the Day Master. Every marked stem is compared against this one stem.
For example, the center compares Yi with the month hidden stem Yi, so it becomes Kansaku. The north compares Yi with the year stem Bing, so it becomes Chousho.
The five pairs of ten stars
Once the five comparisons are made, the ten stars can be organised into five themes. This is what is meant by the five pairs of ten stars.
The ten stars look complex at first, but they fall into five broad movements: protecting, expressing, attracting, acting, and learning. Each theme has a more Yang expression and a more Yin expression, which creates two stars per theme.
Protecting appears as Kansaku-sei and Sekimon-sei. Expressing appears as Houkaku-sei and Chousho-sei. Attracting appears as Rokuzon-sei and Shiroku-sei. Acting appears as Shaki-sei and Kengyuu-sei. Learning appears as Ryuukou-sei and Gyokudou-sei. It is usually easier to learn the five themes first, then remember the individual star names.
Fix the Day Master as the self, then read how the other stem or hidden stem relates to it. This organizes the ten major stars into five pairs. The example below uses a Wood Day Master.
| Relationship | Flow | Wood example | Stars | Instinct | Reading cue |
|---|---|---|---|---|---|
| Same element | same as self | Wood → Wood | Kansaku / Sekimon | defence | independence, allies, protection |
| Element produced by self | output from self | Wood → Fire | Houkaku / Chousho | expression | expression, communication, feeling |
| Element controlled by self | self acts on the target | Wood → Earth | Rokuzon / Shiroku | attraction | attraction, accumulation, realization |
| Element controlling self | pressure on self | Metal → Wood | Shaki / Kengyuu | action | action, responsibility, breakthrough |
| Element producing self | source supporting self | Water → Wood | Ryuukou / Gyokudou | learning | learning, wisdom, inquiry |
| Star | Reading | Element | Keywords |
|---|---|---|---|
| Independence Star | Kansaku-sei | Wood (Yang) | Independence, self-pacing |
| Cooperation Star | Sekimon-sei | Wood (Yin) | Cooperation, sociability |
| Natural Expression Star | Houkaku-sei | Fire (Yang) | Expression, optimism |
| Sensitive Expression Star | Chousho-sei | Fire (Yin) | Sensitivity, artistry |
| Attraction Star | Rokuzon-sei | Earth (Yang) | Charm, attraction |
| Accumulation Star | Shiroku-sei | Earth (Yin) | Accumulation, steadiness |
| Action Star | Shaki-sei | Metal (Yang) | Action, drive, speed |
| Responsibility Star | Kengyuu-sei | Metal (Yin) | Responsibility, honour |
| Exploration Star | Ryuukou-sei | Water (Yang) | Adventure, reform |
| Wisdom Star | Gyokudou-sei | Water (Yin) | Wisdom, learning |
The ten major stars are derived from the Five-Element relationships between the Day Master and other stems: 5 pairs of Yang and Yin, totalling 10 stars.
Position in the body chart
In the Yang body chart, the Ten Major Stars appear in five positions: head (north), left hand (east), chest (centre), right hand (west), and abdomen (south). The star placed in the chest is called the central star and is often read as the person's core tendency or inner axis.
The same star changes nuance depending on position. The centre shows the person's core, the north relates to thought and elders, the east shows how the person moves toward society, the west relates to close relationships and results, and the south shows expression and the future.
If the same star appears in several positions, that theme tends to repeat across different areas of life. For example, repeated Shaki-sei can indicate that action, speed, and competitive drive emerge in several contexts.
The major star placed at the chest (center) is the central star — the one that most strongly represents the person's essential nature.
Repeated stars and surrounding positions
When a star repeats in the body chart, it does not simply mean that the trait is strong. It also suggests that the same response pattern may appear in several life domains.
The central star is the core. The surrounding four directions — north, east, south, and west — show how that core appears in relation to thinking, society, expression, and close relationships.
When similar stars surround the central star, the theme can feel consistent and easy to recognise. When the surrounding stars differ sharply, the person may show different faces depending on context, which is not a contradiction but part of the chart's structure.
Do not read the stars alone
The Ten Major Stars are useful because they are easy to recognise, but they should not be used to make fixed judgments about a person.
The same Chousho-sei, for example, may appear differently depending on whether it is central, placed in the east, repeated in several positions, or supported by a strong or delicate supporting star. The Yin chart, elemental balance, supporting stars, Tenchusatsu, phase relationships, and timing cycles all change the way a star manifests.
The stars are best used as language for noticing tendencies: how you protect yourself, express yourself, attract others, act under pressure, or learn from experience. They are not verdicts, and they are not good-or-bad labels.
FAQ
Are the Ten Major Stars the same as the central star?
No. The Ten Major Stars are the full set of ten stars. The central star is the particular major star placed in the chest or centre position of the Yang body chart, and it is read as especially important.
What does it mean if the same star appears more than once?
It means that the same theme tends to appear across multiple life areas. It can show consistency and strength, but also a tendency to repeat the same response pattern.
Can I judge personality from the star name alone?
No. The star name is only the entry point. Position, repetition, the central star, supporting stars, Yin chart structure, and timing cycles all need to be considered for a natural reading.
How are the Ten Major Stars different from the Twelve Supporting Stars?
The Ten Major Stars describe personality and behavioural expression. The Twelve Supporting Stars describe energy level and life-stage posture. Both are placed in the Yang body chart and are read together.
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