Western White Tiger · 21
Shen Shui Yuan(Three Stars Mansion)
Shen Shui Yuan is the traditional deity title for Three Stars Mansion, number 21 in the atlas and part of the Western White Tiger. It follows Turtle Beak Mansion and precedes Well Mansion. This Chinese Medieval reconstruction contains 7 stars and 6 segments; HIP 25930 is the red-ringed reference star.
Asterism reference
- Position in the atlas
- 21 / 28
- Four Symbols group
- Western White Tiger
- Stars in this diagram
- 7
- Determinative star
- HIP 25930
Reading this star map
Three Stars Mansion has a slanted central row of three, surrounded by four more widely spaced stars: seven in total. The reference is the upper-right member of the central row. Begin with that short chain, then follow the longer extensions. The name is not a limit of three stars.
Understanding the deity title
The traditional title 參水猿 (Shen Shui Yuan) combines the mansion character 參, the association 水, and the animal image 猿. The astronomical entry is Three Stars 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.
「又主權衡。所以平理也」《晉書》卷十一・天文志上・二十八舍Alongside military imagery, Shen is associated with weighing and equitable judgment. A modern reading compares choices by the same measure instead of asking only who wins. Good judgment still needs context; not every difficult situation requires an immediate verdict.
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.