| Detail | Value | Reference |
|---|---|---|
| WR | 77aa | |
| Reference | VIIA | |
| HD | ||
| Alias1 | ||
| Alias2 | NC-T | |
| Alias3 | HBD 4 | |
| Right Ascension J2000 (h:m:s) | 16 46 46.28 | |
| Declination J2000 (d:m:s) | -45 47 58.3 | |
| Galactic Longitude (deg) | 339.5555 | |
| Galactic Latitude (deg) | -0.3314 | |
| Spectral Type | WC9d | HBD05, CH06 |
| Binary Status | ||
| umag | ||
| bmag | ||
| vmag | ||
| rmag | ||
| Umag | ||
| Bmag | ||
| Vmag | ||
| Gmag | 14.98 | DR2 |
| Jmag | 10.04 | CS03 |
| Hmag | 8.214 | CS03 |
| Kmag | 6.725 | CS03 |
| Cluster | Westerlund 1 | |
| Association | ||
| Star Forming Region | ||
| Distance | 3.011 | CRB23 |