23♑25 to 28♑53
The ninth Chinese lunar mansion is named 牛宿 Niu Su, “Ox Mansion.” It is the second of the seven mansions of the Black Tortoise of the North.
The tenth asterism of the Ox Mansion is also called 右旗 Youqi, “Right Flag.” It represents military flags and is composed of nine stars of the constellation Aquila. [1]
| 2000 | 2050 | IAU | Chinese | Orb |
| 26♑48 | 27♑30 | μ Aql | Youqi Yi (1) | 1°10′ |
| 27♑48 | 28♑30 | σ Aql | Youqi Er (2) | 1°00′ |
| 23♑38 | 24♑20 | δ Aql, Almizan I | Youqi San (3) | 1°40′ |
| 23♑25 | 24♑08 | ν Aql | Youqi Si (4) | 1°00′ |
| 25♑50 | 26♑32 | ι Aql, Al Thalimain | Youqi Wu (5) | 1°10′ |
| 25♑23 | 26♑05 | HD184701 | Youqi Liu (6) | 1°00′ |
| 25♑30 | 26♑12 | 42 Aql | Youqi Qi (7) | 1°00′ |
| 24♑51 | 25♑33 | κ Aql | Youqi Ba (8) | 1°00′ |
| 28♑53 | 29♑35 | 56 Aql | Youqi Jiu (9) | 1°00′ |
Constellation Yuoqi the Right Flag
23♑25 to 28♑53
The nine stars of the Left Flag are to the left of the River Drum, and the nine stars of the Right Flag are to the north of the Ox and southwest of the River Drum. These are the celestial drums, flags, and banners. They govern sound, establishing defenses, and understanding enemy strategies. A bright and large flag star indicates good fortune. If five planets violate it, war will break out. [2]
The right and left flags each have nine stars, located to the left and right of the River Drum, all representing the celestial flags and drums. A bright and clear flag signifies good fortune for the general; a wavering star signifies war; an angry star signifies the value of horses. [3]