| Detail | Value | Reference |
|---|---|---|
| WR | 77sd | |
| Reference | VIIA | |
| HD | ||
| Alias1 | ||
| Alias2 | NC-X | |
| Alias3 | GDTB 2 | |
| Right Ascension J2000 (h:m:s) | 16 47 14.14 | |
| Declination J2000 (d:m:s) | -45 48 32.0 | |
| Galactic Longitude (deg) | 339.6008 | |
| Galactic Latitude (deg) | -0.3991 | |
| Spectral Type | WN5o | CH06 |
| Binary Status | ||
| umag | ||
| bmag | ||
| vmag | ||
| rmag | ||
| Umag | ||
| Bmag | ||
| Vmag | ||
| Gmag | 18.11 | DR2 |
| Jmag | 12.362 | CS03 |
| Hmag | 11.079 | CS03 |
| Kmag | 9.99 | GD06 |
| Cluster | Westerlund 1 | |
| Association | ||
| Star Forming Region | ||
| Distance | 1.72 | RC20 (a flag) |