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Nine Star Ki · Star 1 of 9

一白水星, One White Water: the star of the north

一白水星, One White Water, is the first of the nine stars: white, Water, standing at the foot of the Lo Shu square in the north palace, the place of the 坎 (Kan) trigram. Japanese practitioners read a person whose year star is 一白 as adaptable and inward, someone who keeps a good deal in reserve.

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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 cell of 1, at the bottom middle, is outlined and tinted, and labelled North, 坎宮. S N E W 4 9 2 3 5 7 8 1 6 一白 One White Water North · 坎宮 Trigram ☵ Lo Shu · South on top
One White Water in its home palace: the bottom middle cell of the square, the north, since Japanese boards put South on top. Odd numbers are open dots, even numbers filled, as in the old diagrams.

Facts

Number
1 of 9
Japanese name
一白水星 (いっぱくすいせい, ippaku suisei)
Literal name
One White Water Star; compact label 1 Water
Colour and phase
White (白); Water (水)
Trigram
坎 ☵ Kan (Chinese Kǎn), water
Home palace
坎宮, the north: the bottom middle of the square
Branch of the palace
子
Chinese forms
一白水星; in Chinese feng shui also 一白貪狼星
House on the boards
The first of nine: the low phase
Recent years of this star
1990, 1999, 2008, 2017, 2026 (each from 立春)
Opposite palace
離宮, the south, home of 九紫
Phase relations
Generated by Metal (6, 7); generates Wood (3, 4)

Meaning

One White Water stands at the foot of the square, in the north, the place the Shuogua gives to the 坎 trigram. The Shuogua's circuit of the year ends there: "勞乎坎", it says, the labours of the year come to 坎, the trigram of water where all things return to rest. Its family role is the middle son, and by its place in the circuit its season is winter.

Japanese practitioners read a person whose year star is 一白 as flexible and adaptable, someone who gets on with almost anyone and is reserved about their own feelings, with a nervous streak under the calm; some add that the type finds its way late, by steady effort rather than a quick start. Our own text puts it as water in the dark: perceptive and emotionally intelligent, a deep listener who keeps much in reserve, with inconsistency, secrecy and withdrawal as the shadow side. The Kushi line in the West calls the same number 1 Water and gives it winter, midnight and a season of rest, study and reflection, a modern reading of the same circuit rather than a Japanese one.

The tradition reads the year star as the core character; the same star as a month star is read as the inner nature, and as a day star as the day-to-day tendency.

On the boards

一白 is the star of the solar years 1990, 1999, 2008, 2017 and 2026, each counted from 立春, about 4 February; a person born in January of one of those years has the previous year's star. In a 一白 year the first solar month, from 立春, has the star 八白, and the months count down from there, so a 一白 person born in the 酉 month, from 白露 in early September to 寒露 in early October, has 一白 as their month star too: the centre case of the inclination, 中宮傾斜.

For every other month star the inclination is a palace of its own. With the month star in the centre, a 一白 year star lands in 巽宮 (month star 2), 震宮 (3), 坤宮 (4), 坎宮 (5), 離宮 (6), 艮宮 (7), 兌宮 (8) or 乾宮 (9). The synthetic person we test with, born in June 1990, has month star 4 and so the inclination 坤宮.

On the boards of any year, month or day, the palace where 一白 stands is the 一白 person's house for that period. Its home palace, 坎宮, is the first house of the nine-step rhythm, which the tradition reads as the low phase, a time for rest, hidden work and planning; in 2026, when 一白 itself is in the centre, the house of every 一白 person is the centre, the position the tradition calls blocked in all eight directions.

The tradition counts a direction auspicious for a 一白 person where a star stands that supports Water: 六白 or 七赤, whose Metal generates Water (生気), or 三碧 or 四緑, the Wood that Water generates (退気). No other Water star exists, so there is no 比和. These are the tradition's readings, which we show with their names; we do not advise a journey or a move.

The trigram's classical correspondences

The Shuogua, one of the commentaries of the Yijing, gives each trigram a family member, a part of the body and an image of nature. For 坎 it gives:

  • Family member: the middle son (中男).
  • Part of the body: the ears (坎為耳).
  • Image: water (坎為水); Legge's translation lists ditches and channels, what is hidden, and the moon among its further images.
  • Polarity of the trigram: yang, as one of the three sons.

These are symbols of the trigram in a classical text, given here as such. They are not statements about anyone's body, and the star's own yin or yang is not stated in any source we found.

Names

The Japanese name reads ippaku suisei: 一 one, 白 white, 水 water, 星 star. The Traditional Chinese form is the same; Chinese feng shui also calls it 一白貪狼星, after 貪狼, the first star of the Northern Dipper, whose name the Sui-dynasty 五行大義 records. The trigram is read Kan in Japanese and Kǎn in Chinese; its pairing with the number 1 goes back to Zheng Xuan's Han commentary on the Qian zuo du, which starts the spirit Taiyi's round of the nine palaces at 坎. The doubled trigram is hexagram 29 of the I Ching.

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.

Season in the Later Heaven circuit
Winter, by its place in the north: the Shuogua's trigram where all things return to rest sourced
The Kushi line's season and hour
Winter and midnight; a modern Western reading of the same circuit sourced
Character taught in Japan
Flexible and adaptable, with a nervous streak; often finds its way late, by steady effort sourced
Chinese Dipper name
貪狼, the first star of the Northern Dipper; a name only here sourced
Our one-line image
Water in the dark our construction
Our reading of its house
The low phase, read as a time for rest, hidden work and planning our construction
Yin or yang of the star itself
No source gives one; only the trigram's polarity (yang) is classical, and our old engine's "yin" was dropped disputed

How the schools read it

Japanese 気学
Flexible and adaptable, able to get on with anyone, reserved about their own feelings.
The Kushi line
"1 Water": winter and midnight, a season of rest, study and reflection.
Chinese feng shui (Xuan Kong)
Names the number 一白貪狼星 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
A Kua number of 1 is the 坎 life trigram, from a formula that differs for men and women: a different number from the year star.
EsoTerrier
Water in the dark: perceptive, a deep listener who keeps much in reserve, with inconsistency and withdrawal as the shadow side.

Claims about it

  • One White Water is a star in the sky that shapes people born under it.

    false

    What the record shows: It is the number 1 of the Lo Shu with its colour and phase. "Star" is a counting name; nothing astronomical is computed beyond the Sun's longitude for the calendar.

  • 一白 is a yin star.

    unverified

    What the record shows: Our old engine said so, and other lists say the opposite. No Japanese source gives the star a polarity; the Shuogua makes its trigram, 坎, a yang one.

  • The star rules parts of the body and shows what its people must guard against.

    unverified

    What the record shows: The Shuogua gives the 坎 trigram a body part as a symbol, and the Western books turned that into lists for the stars. We show the symbol only in the trigram's own block.

  • Midnight is the traditional hour of 1 Water in Japanese kigaku.

    unverified

    What the record shows: The hour comes from the Kushi line's macrobiotic reading, not from a Japanese source. Winter follows from the north's place in the Shuogua's circuit.

Elsewhere on EsoTerrier

Sources

Primary texts (4)
  1. James Legge, trans., The Yî King (Sacred Books of the East, vol. XVI), Appendix V, the Shuo Kwa. Oxford: Clarendon Press, 1882. archive.org/details/sacredbooksofchi16conf
  2. 周易: the 繫辭 (Great Commentary) and the 說卦 (Treatise on the Trigrams). Chinese text, Wikisource. zh.wikisource.org/wiki/周易/說卦
  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 (11)
  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. picora.net, pages on 同会 and the nine-year cycle (2025). Facts only. picora.net/column/kyusei/doukai
  6. nonbirito.jp, pages on the boards and the auspicious directions (2025). Facts only. nonbirito.jp/kakuhouiban-kippoui
  7. shin-yu.net, the character and direction calculators, in Japanese and English (2026). Facts only. shin-yu.net/kyuseikigaku/seikaku
  8. Kua number pages: yourchineseastrology.com, fengshui-expert.fr and fengshui-village.com (2025). Facts only. yourchineseastrology.com/feng-shui/direction
  9. 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
  10. David Snieckus, after Roel Hill, "Nine Star Ki" (2007), a table of the Kushi line. Facts only. davidsnieckus.com/nine-star-ki
  11. 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.