| WR | 21a  |   |
| Reference | VII  |   |
| HD |   |   |
| Alias1 | DR3 5351703390282380800  |   |
| Alias2 | THA 35-II-42  |   |
| Alias3 | 1E 1024.0-5732  |   |
| Right Ascension J2000 (h:m:s) | 10 25 56.49  |   |
| Declination J2000 (d:m:s) | -57 48 43.5  |   |
| Galactic Longitude (deg) | 284.5154  |   |
| Galactic Latitude (deg) | -0.2394  |   |
| Spectral Type | O2If/WN5  | MSA16  |
| Binary Status | d.e.l.  |   |
| umag |   |   |
| bmag | 14.19  | MMC25  |
| vmag | 13.09  | MMC25  |
| rmag |   |   |
| Umag |   |   |
| Bmag | 13  | CS03  |
| Vmag |   |   |
| Gmag | 11.69  | dr2  |
| Jmag | 8.808  | CS03  |
| Hmag | 8.2  | CS03  |
| Kmag | 7.833  | CS03  |
| Cluster |   |   |
| Association |   |   |
| Star Forming Region | RM10 SFC26?  |   |
| Distance | 3.799  | CRB23  |
| NebulaM/td> |   |