Twenty-Eight Lunar Mansions: Names, Four Symbols, and Sky Stories

The Twenty-Eight Lunar Mansions, Ershiba Xiu (二十八宿), are 28 unequal divisions of the traditional Chinese sky, used to locate the Moon, Sun, planets, and stars. Four groups of seven form the Azure Dragon, Black Tortoise, White Tiger, and Vermilion Bird. Together, they turn a sky full of distant lights into a familiar world of creatures, seasons, and stories.

Their beauty lies in that meeting of careful observation and human feeling. A rising dragon welcomes the return of spring; a pair of far-separated star groups gives a poet words for missing a friend. Learning their names offers a way to feel more at home beneath the night sky, and to share a wish for renewal, companionship, and peace with someone you love.

What is a lunar mansion, and why is it called xiu?

In this setting, xiù (宿) means a lodging or station. “Lunar mansion,” “lunar lodge,” and “lunar station” all evoke the Moon travelling against the background stars, finding a different resting place along its way. The image is wonderfully human: even the Moon seems to have somewhere to return.

The astronomical system gives that image a precise framework. Each mansion has a reference star, called a juxing (距星), used to measure position along the celestial equator. The interval between successive reference-star meridians defines a mansion’s width. These intervals are unequal. A mansion’s name also identifies its principal asterism, or named star pattern, while its wider region includes other stars and asterisms.

The Eastern Han thinker Wang Chong makes the lodging image explicit in his Lunheng (论衡): “二十八宿为日月舍” describes the mansions as lodgings for the Sun and Moon, comparing them to earthly posting stations. The old metaphor gives a moving sky the reassuring shape of a journey with places to pause.

27.32 days and 29.53 days: two ways of following the Moon

The Moon takes about 27.32 days to return to the same position relative to the stars: its sidereal month. A new Moon to the next new Moon takes about 29.53 days: its synodic month. The second cycle is longer because Earth and the Moon also move around the Sun during that time.

The 28 stations make the Moon’s journey memorable, but they do not divide it into 28 equal overnight stays. The Moon passes through unequal sectors at a varying apparent speed. Its changing phase follows the Sun–Earth–Moon geometry, so a full Moon is not permanently assigned to one mansion. This is why a star-position map and a lunar-phase calendar tell different parts of the same story.

The Four Symbols: a year of renewal, warmth, courage, and rest

The Four Symbols (四象, Si Xiang) give each seven-mansion group a living form. Their traditional directions, seasons, and phases belong to an interconnected cultural picture. The phases draw on Wuxing (五行), the Five Phases; Earth occupies a central role in the wider five-direction scheme.

These are traditional correspondences, not a promise that each creature will always appear in its named compass direction during its season. The sky changes through the night and year, and the view depends on latitude. The White Tiger’s group, for example, includes familiar Orion stars that are prominent on winter evenings at many northern mid-latitudes. The seasonal symbolism and the observing calendar work at different levels.

The complete list of all 28 lunar mansions

A useful learning sequence runs east, north, west, then south. Each group below has exactly seven mansions. The English names are conventional translations; keeping the Chinese character beside the pinyin makes similar-sounding names much easier to distinguish.

Eastern Azure Dragon: from Horn to Winnowing Basket

Northern Black Tortoise: from Dipper to Wall

Western White Tiger: from Legs to Three Stars

Southern Vermilion Bird: from Well to Chariot Crosspiece

The patterns give the names a visible life. Jiao suggests the dragon’s horns, Jing a well, and Yi the bird’s wings. The traditional Yi asterism contains 22 stars; that count describes the named pattern within the wider mansion.

The final column gives the familiar later names used in star-lord and animal symbolism. The one-character mansion names are the astronomical starting point; the three-character names add another layer of story.

Pronunciations and characters worth remembering

Read 宿 as xiù, 参 as shēn, 觜 as zī, 氐 as dī, 昴 as mǎo, 箕 as jī, and 轸 as zhěn. 斗 here is dǒu, the word for a dipper. 尾 (wěi, Tail), 胃 (wèi, Stomach), and 危 (wēi, Rooftop) have different tones and meanings. 壁 and 毕 both read bì, but are different mansions.

For the animal names, useful readings include 蛟 (jiāo), 貉 (hé), 獬 (xiè), 雉 (zhì), 犴 (àn), 獐 (zhāng), and 貐 (yǔ). Older texts may write 貉 as 狢 and 貐 as 㺄. Traditional forms such as 婁, 畢, 參, 張, and 軫 refer to the same mansions as 娄, 毕, 参, 张, and 轸.

How the seven luminaries and animal names fit together

A name such as Kang Jin Long (亢金龙) combines three things: the mansion Kang, the luminary Jin, and the dragon. Here 金 refers to Venus, whose traditional planetary name is the Metal Star. It is more informative to read the name as “the Venus Dragon of Kang” than to imagine that every middle character describes a material.

The seven luminaries (七曜, qiyao) are the Sun, Moon, and five visible planets. In each seven-mansion group, the middle characters repeat in the order 木、金、土、日、月、火、水: Jupiter, Venus, Saturn, Sun, Moon, Mars, Mercury. Wuxing has five phases; qiyao has seven celestial lights. Their shared words create a connection without making them the same system.

The rare animals preserve an older imaginative vocabulary. Xie (獬) belongs to the Xiezhi (獬豸) tradition of the justice beast; an (犴) is an old hound name; yu (貐) is associated with the legendary yayu (猰貐). Their appearance can vary between texts and artworks. This animal company is distinct from the 12 birth-year animals of the Chinese zodiac (十二生肖), even though several animals appear in both.

Finding familiar stars without forcing a zodiac match

You can use familiar modern stars as stepping stones into the older map. Jiao includes Spica in Virgo. Heart includes Antares in Scorpius, called Xin Xiu Er (心宿二), the second star of Heart. Mao is associated with the Pleiades in Taurus. Zi and Shen both have their principal star patterns in Orion.

Shen’s central three stars are Orion’s Belt, but the larger Shen asterism also includes the bright stars around them, including Betelgeuse and Rigel. The name “Three Stars” preserves a memorable core rather than limiting the entire mansion to three points. Dou, meanwhile, is the six-star Southern Dipper (南斗) in Sagittarius, distinct from the seven-star Northern Dipper (北斗) in Ursa Major.

A neat “28 mansions to 12 zodiac signs” conversion table hides these differences. Modern zodiac constellations are irregular star regions along the ecliptic. Astrological signs divide the zodiac into 12 equal 30-degree sections. The lunar mansions use an equatorial framework with unequal widths. Their regions can overlap, but a mansion does not become a Western birth sign: placing Zi and Shen under Gemini, for example, would lose their Orion landmarks.

How the stars helped people live with the seasons

Long before illuminated clocks and weather apps, the return of familiar stars gave people a sense of the year unfolding. Observers compared stellar positions at consistent times, especially around dusk or dawn, and recorded the Sun, Moon, planets, and unusual celestial visitors against the mansion framework. These observations contributed to calendars and seasonal knowledge alongside shadow measurements, calculations, and other astronomical methods.

Stars also helped travellers orient themselves and mariners judge their course. In the age of Zheng He, celestial knowledge worked alongside magnetic-compass navigation. The wider lesson is the practical value of a familiar sky: recognizing a pattern could help someone find a direction far from home.

The traditional calendar joins lunar months to the solar year. Its seasonal rhythm is therefore richer than a repeating 28-day list. Farmers needed to know when warmth returned, when crops ripened, and when winter clothing would be needed. A constellation’s changing evening position could make those transitions visible.

The dragon lifts its head

Longtaitou (龙抬头), “Dragon Raises Its Head,” falls on the second day of the second lunar month. Its springtime imagery is associated with the eastern dragon’s horn stars returning to the evening sky, and with hopes for rain, growth, and a fruitful year. The connection is seasonal: the actual rising time depends on the year, location, horizon, and hour of observation.

For a reader beginning a new chapter, this is an especially generous image. Growth starts by lifting one’s head. A dragon motif can carry that wish into a new home, a graduation, or the first uncertain weeks of a fresh beginning.

The Fire Star and the approach of colder days

The Book of Songs (诗经) opens its poem “Seventh Month” with “七月流火，九月授衣”: the Fire Star moves westward, and clothing is prepared in the ninth month. The Great Fire (大火) is associated with Antares and the Heart asterism. The line follows the agricultural year toward colder weather; its “seventh month” belongs to the poem’s ancient calendar, rather than simply meaning modern July.

That combination of sky and clothing brings the cosmos close to ordinary life. Someone looks upward, notices a change, and begins preparing warmth for the people at home.

Other sayings connect Orion’s three belt stars with the New Year, or the Northern Dipper’s handle with the four seasons. They make sense when the observing place and time of night are held in view. At many northern mid-latitudes, Orion is prominent on winter evenings; the Dipper also turns during a single night. A local star chart supplies the timing that a short proverb leaves unsaid.

Stars in poetry: distance, reunion, and a sense of home

Shen and Shang: the ache of missing a friend

In To Wei Ba, a Retired Scholar (赠卫八处士), Du Fu writes “人生不相见，动如参与商”, comparing the difficulty of meeting in life to Shen and Shang. Shen points toward Orion; Shang belongs to the Great Fire and Heart tradition around Antares. Their widely separated places in the sky became an enduring image of separation.

The poem’s tenderness comes from what happens next: the friends are together again, sharing lamplight, food, and conversation after 20 years. The stars introduce distance, but the evening answers it with hospitality. Reading the line as a promise of eternal separation misses the warmth of the reunion.

Fenye: a homeland written among the stars

Fenye (分野) connected celestial regions with territories on Earth in traditional cosmology. In Wang Bo’s Preface to the Pavilion of Prince Teng (滕王阁序), “星分翼轸，地接衡庐” places Hongzhou, associated with modern Nanchang, beneath Wings and Chariot Crosspiece, beside the earthly landmarks Heng and Lu. A place is introduced through both its landscape and its imagined place in the heavens.

Li Bai gives the sky a different role in The Hard Road to Shu (蜀道难). “扪参历井仰胁息” pictures a climb so high that the traveller seems to brush Shen and pass Jing, looking upward and holding his breath. The star names make the mountain road feel immense.

Such passages show how readily the mansions moved from observation into poetry. In historical omen traditions, fenye could also connect celestial events with the affairs of a region or court. In literature, it gives readers another way to imagine belonging: a home has mountains and rivers below, and names shining above.

From star patterns to star lords, almanacs, and stories

In Daoist worship and later popular culture, the mansions become star lords (星君, xingjun), members of a celestial order whose images carry wishes for protection and harmony. Artists give them faces, robes, gestures, and animal companions. Specific names, clothing colors, and ritual appearances depend on the tradition and work being viewed; one painted figure is not a universal dress code for every star lord.

The Southern and Northern Dippers have their own place in this devotional imagination. The familiar saying “南斗注生，北斗注死” assigns the registers of life and death to the two Dippers; stories about them also carry hopes for a longer life. This is the language of star-deity belief, distinct from the six-star and seven-star patterns an observer finds on a chart.

Star diagrams also appear on ritual textiles and objects, bringing a vision of the ordered heavens into ceremonies. The attraction is easy to understand: the sky offers a larger pattern around a life that can sometimes feel unsettled. They express a wish—a medium through which people hope to bring about wealth, health, virtue, longevity, or a specific outcome in life.

The mansions in Journey to the West and Flowers in the Mirror

In Journey to the West (西游记), Kui Mu Lang (奎木狼), the Wood Wolf of Kui, descends to the human world as the Yellow-Robed Demon and holds Princess Baihuaxiu captive. Sun Wukong, the Monkey King (孙悟空) encounters a world where a being’s earthly appearance can conceal a celestial identity. The star-lord names become characters with desires, obligations, and consequences.

Li Ruzhen’s Flowers in the Mirror (镜花缘) gives Xin Yue Hu (心月狐), the Moon Fox of Heart, a literary incarnation as Wu Zetian. The Investiture of the Gods (封神演义) also includes the 28 mansions in its final celestial appointments. These are imaginative uses of the star tradition within novels. Recognizing the names lets a reader hear an extra resonance when a familiar star returns in a story.

Astronomy, daily almanacs, and birth-mansion calculations

Traditional almanacs may assign a mansion to a day and attach customary preferences for activities. Star-mansion references also enter some feng shui (风水) traditions. These are calendrical and interpretive uses of the names; a repeating day assignment and the Moon’s observed location answer different questions.

Buddhist xiuyao (宿曜) traditions brought further connections with Indian lunar stations, or nakshatras. Both 27- and 28-station systems appear in this broader history. The 27-station scheme described by Japan’s National Astronomical Observatory omits Niu from the Chinese-name sequence. Indian nakshatras, Buddhist xiuyao, Chinese astronomical mansions, and later daily mansion cycles have their own conventions.

If you explore a modern “birth mansion” calculator, first check which system it uses: the birth date’s almanac assignment, a lunar-calendar rule, or an astronomical Moon position. A stated calendar, time zone, day boundary, and calculation method make the result understandable. A name from one system should not silently become a personality or relationship verdict from another. The cultural interest lies in understanding the tradition that gives the name its meaning.

Six encounters with the ancient sky in art and objects

Star names did not remain on an observer’s chart. They travelled onto lacquer, stone, silk, clay, and tomb ceilings. Each medium offers a different encounter with the wish to give the heavens a lasting place in human life.

A starry lacquer chest from the tomb of Marquis Yi

Excavated in 1978 at the tomb of Marquis Yi of Zeng in Suizhou, the lacquer chest with a 28-mansion design is dated to about 433 BCE and belongs to the Hubei Provincial Museum. The character 斗 occupies the center of the lid, with the mansion names around it and dragon and tiger imagery alongside. A practical container becomes a small, intimate sky. The museum identifies it as the earliest surviving material record pairing all 28 names with Four Symbols imagery.

The Fuyang discs: a sky that can turn in the hands

The Western Han tomb of Xiahou Zao, Marquis of Ruyin, excavated in Fuyang in 1977, yielded a remarkable pair of lacquered astronomical discs, now in the Fuyang Museum collection. The upper disc carries the Northern Dipper pattern and 365 small holes around its edge; the lower disc records the mansion names and their angular intervals.

Their center holes allow the discs to share an axis. Together with the associated support, they have been studied as an early equatorial observing instrument. The fine ring of holes makes the patient work of measurement tangible: the moving sky has been brought down to a scale a person can examine and turn.

A Han tomb ceiling in Jingbian

The Eastern Han mural tomb at Qushuhao in Jingbian was excavated in 2015. Its paintings covered a total of a little over 20 square metres across the decorated parts of the tomb. Within that larger ensemble, the celestial ceiling combines star patterns, labels, animal images, and the Four Symbols. The star painting is associated with the Shaanxi Archaeology Museum collection.

Here the heavens become an enclosing presence overhead. A celestial lid or vaulted ceiling above an earthly space makes a miniature cosmos, recalling the traditional image of rounded Heaven and square Earth (天圆地方). The effect joins a mapped cosmos with the human hope for continuity beyond a single lifetime.

The Suzhou sky engraved in stone

The Suzhou astronomical stele was engraved in 1247 by Wang Zhiyuan from Huang Shang’s chart. Preserved at the Suzhou Stone Inscription Museum in the Confucian Temple, it records 1,440 stars. Its 28 dividing lines make the unequal mansion sectors visible around the pole-centered map.

Unlike a decorative scattering of stars, this sky has structure: the celestial equator, ecliptic, and Milky Way share the surface with named star patterns. A rubbing preserves the same invitation as the stone itself—to look closely, and to recognize order in apparent abundance.

The Five Planets and Twenty-Eight Mansions handscroll

The Five Planets and Twenty-Eight Mansions in Divine Forms (五星二十八宿神形图) in the Osaka City Museum of Fine Arts turns celestial bodies into striking figures. The surviving upper portion contains the five planetary deities and 12 mansion deities. Human, animal, and hybrid forms make the invisible personalities of the heavens visible.

The museum catalogues the work as traditionally attributed to Zhang Sengyou; it has also been associated with the Tang painter and astronomer Liang Lingzan. Its lasting appeal is the procession itself: the stars step out of a diagram and enter the world of faces, movement, and imagination.

The painted star lords at Fucheng Yuhuang Temple

At Fucheng Yuhuang Temple in Jincheng, Shanxi, the Yuan-period mansion sculptures bring the star-lord tradition into three dimensions. Their expressive faces and accompanying animals give each presence a distinct character. Some are composed and dignified; others feel alert, lively, or fierce.

The group found a new audience through Black Myth: Wukong, whose imagery draws on the temple’s sculptures, including the familiar Kang Jin Long figure. Seeing an old celestial name move between temple art, a classic novel, and a modern game reveals how these stories continue to find new companions.

When looking at a historical star image, begin with the Chinese labels, its date, and its viewing direction. A photograph, modern redraw, or rubbing may present the sky differently; surviving damage can also change what is visible. The wider world of Eastern guardian beasts offers another way to recognize how animal imagery carries protection and belonging across different objects.

A gentle way to begin learning the night sky

Start with one group of seven, not all 28 at once. Say the names while looking at the characters. Then choose a familiar landmark—Spica for Jiao, Antares for Heart, the Pleiades for Mao, or Orion’s Belt within Shen—and find it on a chart set to your location, date, and time.

A star chart that supports traditional Chinese asterisms lets you move between the older names and modern constellations. The Hong Kong Space Museum’s Star Hoppers app includes this kind of view. Repeat the observation from the same place at a similar time on later evenings; the pattern becomes easier to recognize as you notice what changes and what stays familiar.

For memorization, the four short lines keep the full sequence together:
角亢氐房心尾箕
斗牛女虚危室壁
奎娄胃昴毕觜参
井鬼柳星张翼轸

There is no need to turn every evening into a test. Finding one familiar star can be enough. Share its name with someone beside you, or think of a friend beneath another sky. The old mansions offer both knowledge and company: a dragon to welcome beginnings, a tiger for courage, a bird for warmth, and a tortoise for the strength of resting well.

If a symbol from this sky speaks to your own story, let that meaning guide the object you keep or give. A wish for peace and fulfilment (平安如意) can be as personal as a remembered night together. Explore the Eastern Story blessing collection for meaningful companions to the hopes you carry.

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