Southern Vermilion Bird · 25
Xing Ri Ma(Star Mansion)
Xing Ri Ma is the traditional deity title for Star Mansion, number 25 in the atlas and part of the Southern Vermilion Bird. It follows Willow Mansion and precedes Extended Net Mansion. This Chinese Medieval reconstruction contains 7 stars and 7 segments; HIP 46390 is the red-ringed reference star.
Asterism reference
- Position in the atlas
- 25 / 28
- Four Symbols group
- Southern Vermilion Bird
- Stars in this diagram
- 7
- Determinative star
- HIP 46390
Reading this star map
Star Mansion has seven stars spread vertically, with a substantial gap between the upper three and the lower group. The reference is near the lower group. “Star Mansion” names this particular entry; adding its deity name, Xing Ri Ma, helps distinguish it from generic searches about lunar mansions.
Understanding the deity title
The traditional title 星日馬 (Xing Ri Ma) combines the mansion character 星, the association 日, and the animal image 馬. The astronomical entry is Star 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.
「一名天都,主衣裳文繡」《晉書》卷十一・天文志上・二十八舍Xing is associated with clothing and embroidery. The modern metaphor concerns thoughtful presentation: preparing for an occasion or giving a piece of work a fitting form. Care in expression is valuable without making every ordinary day a performance on which personal worth depends.
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.