| Detail | Value | Reference |
|---|---|---|
| WR | 139 | |
| Reference | VII | |
| HD | HD 193576 | |
| Alias1 | HIP 100214 | |
| Alias2 | V444 Cyg | |
| Alias3 | ||
| Right Ascension J2000 (h:m:s) | 20 19 32.42 | |
| Declination J2000 (d:m:s) | +38 43 53.9 | |
| Galactic Longitude (deg) | 76.5980 | |
| Galactic Latitude (deg) | 1.4287 | |
| Spectral Type | WN5o+O6III-V | SSM96 |
| Binary Status | SB2 (P=4.2d) | |
| umag | 8.84 | Ma84 |
| bmag | 8.48 | Ma84 |
| vmag | 8.1 | Ma84 |
| rmag | 7.85 | Ma84 |
| Umag | 8.02 | MJ95 |
| Bmag | 8.52 | HF00 |
| Vmag | 8 | HF00 |
| Gmag | 7.75 | DR2 |
| Jmag | 6.697 | CS03 |
| Hmag | 6.52 | CS03 |
| Kmag | 6.327 | CS03 |
| Cluster | (Berkeley 86) | |
| Association | (Cyg OB1) | |
| Star Forming Region | ||
| Distance | 1.362 | CRB23 |