| WR | 21  |   |
| Reference | VII  |   |
| HD | HD 90657  |   |
| Alias1 | DR3 5255569549619300096  |   |
| Alias2 |   |   |
| Alias3 |   |   |
| Right Ascension J2000 (h:m:s) | 10 26 31.40  |   |
| Declination J2000 (d:m:s) | -58 38 26.1  |   |
| Galactic Longitude (deg) | 285.0171  |   |
| Galactic Latitude (deg) | -0.9032  |   |
| Spectral Type | WN5o+O4-6; WN5o+O7V  | SSM96; FM12  |
| Binary Status | SB2 (P=8.25d)  |   |
| umag | 10.15  | TM88  |
| bmag | 10.03  | TM88  |
| vmag | 9.76  | TM88  |
| rmag | 9.58  | TM88  |
| Umag | 9.53  | Lo79  |
| Bmag | 10.16  | HF00  |
| Vmag | 9.71  | HF00  |
| Gmag | 9.49  | dr2  |
| Jmag | 8.414  | CS03  |
| Hmag | 8.217  | CS03  |
| Kmag | 8.033  | CS03  |
| Cluster |   |   |
| Association |   |   |
| Star Forming Region |   |   |
| Distance | 3.189  | CRB23  |
| NebulaM/td> |   |