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Nine Star Ki · Star 5 of 9

五黄土星, Five Yellow Earth: the star of the centre

五黄土星, Five Yellow Earth, is the fifth of the nine stars: yellow, Earth, in the centre of the Lo Shu square, with no trigram and no direction of its own. Japanese practitioners read a person whose year star is 五黄 as forceful and commanding; the direction where 五黄 stands on a board is a different matter, the tradition's gravest direction of the period.

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The Lo Shu square drawn South on top, the numbers 4 9 2, 3 5 7, 8 1 6 each with its count of dots; the centre cell, 5, is outlined and tinted, and labelled Centre, 中宮. S N E W 4 9 2 3 5 7 8 1 6 五黄 Five Yellow Earth Centre · 中宮 No trigram Lo Shu · South on top
Five Yellow Earth in the centre of the square, the 中宮. The centre has no trigram and no direction; on every board the period's star moves into it.

Facts

Number
5 of 9
Japanese name
五黄土星 (ごおうどせい, goō dosei)
Literal name
Five Yellow Earth Star; compact label 5 Earth
Colour and phase
Yellow (黄); Earth (土)
Trigram
None: the centre has no trigram and no family role
Home palace
中宮, the centre of the square
Chinese forms
五黃土星; in Chinese feng shui also 五黃廉貞星
House on the boards
The fifth of nine: the turning phase, in the centre
Recent years of this star
1986, 1995, 2004, 2013, 2022 (each from 立春)
On a board
Where 五黄 stands is the 五黄殺 direction; opposite it, the 暗剣殺
Phase relations
Generated by Fire (9); generates Metal (6, 7); shares Earth with 2 and 8
Gender
Not used: the year star is the same for everyone

Meaning

Five Yellow Earth is the centre of the square. The Han ritual text that first spells out the arrangement already puts five in the middle row, and the old verse of the square, in 甄鸞's sixth-century commentary, ends "五居中央": five dwells in the centre. It has no trigram, no direction and no place in the trigram family; in Zheng Xuan's commentary the spirit Taiyi rests in the centre halfway through its round of the palaces.

Japanese practitioners read a person whose year star is 五黄 as forceful and commanding, a natural leader, and some writers call it the emperor's star (帝王の星): a name for a character. Our own text calls it the centre of the square: central, powerful and magnetic, a natural authority drawn to extremes and to constant change, with extremes, control and isolation as the shadow side. The Kushi line calls the number 5 Soil and gives it balance and transition rather than a season, the pivot between rising and falling.

The direction and the person

五黄 has a second life on the boards. On a year, month or day board, the direction where 五黄 stands is the 五黄殺, which the tradition counts the gravest direction of the period, and the direction opposite it is the 暗剣殺; practitioners avoid moving toward either. Those are readings of a direction for everyone, in a given year, month or day.

They are not readings of people born under 五黄. English feng shui pages and some Japanese popular pages carry the direction's reputation over to the birth star and call 五黄 people dangerous or frightening; the Japanese character readings do not, and neither do we. By the same definitions, a 五黄 person's own 本命殺, the direction where their year star stands, always coincides with the 五黄殺, so on every board their personal killing direction is the one the tradition already marks for everyone.

On the boards

五黄 is the star of the solar years 1986, 1995, 2004, 2013 and 2022, each from 立春. In a 五黄 year the first solar month has the star 二黒, so a 五黄 person born in the 申 month, from 立秋 in early August to 白露 in early September, has 五黄 as their month star as well. That centre case is the one place where some Japanese tables bring in gender, moving the inclination to 兌宮 for men and 乾宮 for women; another table differs and one school reads the centre as it is, as we do.

With any other month star in the centre, a 五黄 year star lands in 離宮 (month star 1), 艮宮 (2), 兌宮 (3), 乾宮 (4), 巽宮 (6), 震宮 (7), 坤宮 (8) or 坎宮 (9).

The centre is the fifth house of the nine-step rhythm, which the tradition reads as the turning phase, a time to take stock. A person whose year star stands in the centre of a board is the one the tradition calls blocked in all eight directions, 八方塞がり. For a 五黄 person the tradition counts auspicious the places of 九紫, whose Fire generates Earth (生気); of 二黒 and 八白, the other Earth stars (比和); and of 六白 and 七赤, the Metal that Earth generates (退気). We show these as readings and advise no journey.

Names

The Japanese name reads goō dosei: 五 five, 黄 yellow, 土 earth, 星 star. Traditional Chinese writes the colour 黃, so the Chinese form is 五黃土星; Chinese feng shui also calls it 五黃廉貞星, after 廉貞, the fifth star of the Northern Dipper in the 五行大義. No hexagram belongs to it, since the centre has no trigram to double.

Correspondences

Each item with how it stands: “sourced” is in the work cited, “our construction” is EsoTerrier’s own, and “disputed” means the sources disagree.

Place in the Japanese table
The centre, which the Japanese Wikipedia table marks 太極, the Great Ultimate sourced
The Kushi line's phase
Balance and transition, under the name 5 Soil, with no season or hour sourced
Character taught in Japan
Forceful and commanding, a born leader; some writers call it the emperor's star (帝王の星) sourced
Chinese Dipper name
廉貞, the fifth star of the Northern Dipper; a name only here sourced
Our one-line image
The centre of the square our construction
Our reading of its house
The turning phase, read as a time to take stock our construction
The centre case of the inclination
Some tables move it by gender for 五黄 alone (兌宮 for men, 乾宮 for women); others do not disputed

How the schools read it

Japanese 気学
Forceful, commanding and enduring; some writers call 五黄 the emperor's star, a name for a character.
The Kushi line
"5 Soil": balance and transition, the pivot between rising and falling.
Chinese feng shui (Xuan Kong)
Names the number 五黃廉貞星 and reads it for the sectors of a building over time; those readings are not about people and are not shown here.
Eight Mansions feng shui
Its Kua number has no 5: a 5 becomes 2 for men and 8 for women. That gendered rule belongs to the Kua number, not to the year star.
EsoTerrier
The centre of the square: central, powerful and magnetic, drawn to extremes and to change, with extremes, control and isolation as the shadow side.

Claims about it

  • A person born under Five Yellow Earth is dangerous or ill-starred, because 五黄 is the worst star of the boards.

    disputed

    What the record shows: Two different things are run together. The 五黄殺 is the direction where 五黄 stands on a board, the gravest of the period for everyone in the tradition's reading; the birth star 五黄 is read as a forceful character. We never describe a person by the direction's reading.

  • A 五黄 year star becomes 2 for men and 8 for women.

    false

    What the record shows: That is the rule of the Kua number in Eight Mansions feng shui. In 九星気学 the year star is 五黄 for everyone born in its year.

  • Moving toward the 五黄殺 direction harms a person.

    unverified

    What the record shows: The tradition counts it the gravest direction of the period, and practitioners avoid it.

  • A 五黄 person whose month star is also 五黄 takes an inclination by a fixed table.

    disputed

    What the record shows: Two tables circulate, one of them split by gender, and another school reads the centre as it is. We report 中宮傾斜.

Elsewhere on EsoTerrier

Sources

Primary texts (4)
  1. 大戴禮記 (Da Dai Liji), the 明堂 chapter, attributed to 戴德; Western Han compilation. Chinese text, Wikisource. zh.wikisource.org/wiki/大戴禮記/明堂
  2. 徐岳 (Xu Yue), 數術記遺, with the commentary of 甄鸞 (Zhen Luan), 6th century. Chinese text, Wikisource. zh.wikisource.org/wiki/數術記遺
  3. 蕭吉 (Xiao Ji), 五行大義, juan 4 and 5. Sui dynasty. Chinese text, Wikisource. zh.wikisource.org/wiki/五行大義/4
  4. 周易乾鑿度 (Qian zuo du), Han apocrypha, with the commentary of 鄭玄 (Zheng Xuan, 127 to 200). Siku quanshu text, Wikisource. zh.wikisource.org/wiki/周易乾鑿度_(四庫全書本)
Studies and other sources (12)
  1. "九星", Japanese Wikipedia (orientation only). ja.wikipedia.org/wiki/九星
  2. "九星気学", Japanese Wikipedia (orientation only). ja.wikipedia.org/wiki/九星気学
  3. 9starki.com (the Kushi line, online since 1996): FAQ, toolbox and information pages. Facts only. 9starki.com/faq.htm
  4. stellica.jp, a guide to the inclination palace (2025). Facts only. stellica.jp/blog/kyusei-keishakyu-guide
  5. kaiun-houi.com, kyusei-kigaku.com and uranai-hoso.com, pages on finding the inclination (2025). Facts only. kaiun-houi.com/keisyakyu-calculation
  6. picora.net, pages on 同会 and the nine-year cycle (2025). Facts only. picora.net/column/kyusei/doukai
  7. nonbirito.jp, pages on the boards and the auspicious directions (2025). Facts only. nonbirito.jp/kakuhouiban-kippoui
  8. amenouranai.com and hiroro.jp, pages on the killing directions (2025). Facts only. amenouranai.com/kyuseikigaku-kyouhoui
  9. Kua number pages: yourchineseastrology.com, fengshui-expert.fr and fengshui-village.com (2025). Facts only. yourchineseastrology.com/feng-shui/direction
  10. 星林學苑, "玄空九星" (2024), on the nine stars of Xuan Kong feng shui. Facts only. 108s.tw/article/info/291
  11. David Snieckus, after Roel Hill, "Nine Star Ki" (2007), a table of the Kushi line. Facts only. davidsnieckus.com/nine-star-ki
  12. Oggi.jp (Shogakukan), "九星気学とは? 本命星の性格と運勢" (2025). Facts only. oggi.jp/6772474
Our own research (2)
  1. EsoTerrier, Nine Star Ki research and validation, 10 to 14 October 2026.
  2. EsoTerrier calculation engine, the Nine Star Ki service and its documentation.

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By EsoTerrier. Written with AI assistance from our research and checked against its sources; last revised 19 October 2026. How we write these pages.

First published ; last revised . Corrections: support@esoterrier.com.