| Detail | Value | Reference |
|---|---|---|
| WR | 138-1 | |
| Reference | GF09; VCM10 | |
| HD | ||
| Alias1 | DR3 2062560122958679936 | |
| Alias2 | WR138a | |
| Alias3 | HBHA 4202-22 | |
| Right Ascension J2000 (h:m:s) | 20 17 08.11 | |
| Declination J2000 (d:m:s) | +41 07 26.9 | |
| Galactic Longitude (deg) | 78.3202 | |
| Galactic Latitude (deg) | 3.1536 | |
| Spectral Type | WN8-9h | GF09; VCM10 |
| Binary Status | ||
| umag | ||
| bmag | 17.83 | MMC25 |
| vmag | 16.19 | MMC25 |
| rmag | ||
| Umag | ||
| Bmag | 17.25 | GF09 |
| Vmag | 15.44 | GF09 |
| Gmag | 13.82 | DR2 |
| Jmag | 10.152 | CS03 |
| Hmag | 9.265 | CS03 |
| Kmag | 8.649 | CS03 |
| Cluster | ||
| Association | ||
| Star Forming Region | ||
| Distance | 7.028 | CRB23 |
| NebulaM/td> |