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The Wall mansion (Chinese: 壁宿; pinyin: Bì Xiù) is one of the Twenty-eight mansions of the Chinese constellations. It is one of the northern mansions of the Black Tortoise.
Asterisms
| English name | Chinese name | European constellation | Number of stars |
| Wall | 壁 | Pegasus/Andromeda | 2 |
| Thunderbolt | 霹靂 | Pisces | 5 |
| Cloud and Rain | 雲雨 | Pisces | 4 |
| Celestial Stable | 天廄 | Andromeda | 3 |
| Sickle | 鈇鑕 | Cetus | 5 |
| Official for Earthworks and Buildings | 土公 | Pisces | 2 |
| Chinese constellations |
|---|
| Three enclosures (三垣): |
| Purple Forbidden enclosure (紫微垣) | Supreme Palace enclosure (太微垣) | Heavenly Market enclosure (天市垣) |
| Four Symbols (四象) and Twenty-eight mansions (二十八宿): |
| East: Azure Dragon (青龍): Horn (角) | Neck (亢) | Root (氐) | Room (房) | Heart (心) | Tail (尾) | Winnowing Basket (箕) |
| South: Vermilion Bird (朱雀): Well (井) | Ghost (鬼) | Willow (柳) | Star (星) | Extended Net (張) | Wings (翼) | Chariot (軫) |
| West: White Tiger (白虎): Legs (奎) | Bond (婁) | Stomach (胃) | Hairy Head (昴) | Net (畢) | Turtle Beak (觜) | Three Stars (參) |
| North: Black Tortoise (玄武): Dipper (斗) | Ox (牛) | Girl (女) | Emptiness (虛) | Rooftop (危) | Encampment (室) | Wall (壁) |
