Western White Tiger · 19
Bi Yue Wu（Net Mansion）
Bi Yue Wu is the traditional deity title for Net Mansion, number 19 in the atlas and part of the Western White Tiger. It follows Hairy Head Mansion and precedes Turtle Beak Mansion. This Chinese Medieval reconstruction contains 9 stars and 8 segments; HIP 20889 is the red-ringed reference star.
Asterism reference
- Position in the atlas
- 19 / 28
- Four Symbols group
- Western White Tiger
- Stars in this diagram
- 9
- Determinative star
- HIP 20889
Reading this star map
Net’s nine stars are unevenly distributed: the left and center are crowded, and one star extends far down to the right. The reference lies toward the upper left. Inspect the long lower-right extension separately from the short left-hand segments before reading the whole shape.
Understanding the deity title
The traditional title 畢月烏 (Bi Yue Wu) combines the mansion character 畢, the association 月, and the animal image 烏. The astronomical entry is Net Mansion. A deity portrait expresses cultural imagery; a star map records positions and connecting lines. They can be read together without expecting the star pattern to resemble the animal.
What does this calculator result mean?
If a birthday lookup returns this mansion, the entered date is assigned to it by our daily almanac rules. It does not mean everyone born that day shares a personality, or that the Moon was inside this star pattern. Compare calendar, date and assignment system before comparing tools.
Twenty-Eight Mansions sculptures · Fucheng Jade Emperor Temple, Jincheng
Photo: Patrick20242023. Resized and compressed; Shen Shui Yuan is also cropped to isolate the figure.
Original photographs · CC BY-SA 4.0Further reading: personality associations
The historical text describes the roles of celestial asterisms. The life and personality associations below are our modern interpretations, not historical claims about people born on a particular date.
「主邊兵，主弋獵」《晉書》卷十一・天文志上・二十八舍Bi is associated with frontier defense and hunting. The modern analogy is sustained attention: learning weak points and waiting for evidence rather than relying on luck. Focus needs occasional distance so that changed circumstances do not go unnoticed.
Sources and image credits
The National Astronomical Observatory of Japan explains the classifications and calendar concepts. Star lines follow Stellarium Chinese Medieval, with positions from HYG v4.1. Our diagrams are attributed under CC BY-SA 4.0 and represent one reconstruction, not the only historical depiction.