| Detail | Value | Reference |
|---|---|---|
| WR | 21 | |
| Reference | VII | |
| HD | HD 90657 | |
| Alias1 | HIP 51109 | |
| 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 |