| Donor | V779 Cen | Krzeminski (1974) |
| Other Names | Krzeminski's Star | |
| Spectral Type | O6.5III | Howarth and Prinja (1989) |
| Mass | 20.5(7) Msun, | Ash et al. (1999) |
| Radius | ||
| Luminosity | ||
| Teff | 39000 K | Howarth and Prinja (1989) |
| Rotation | ||
| Wind | ||
| Terminal Wind Velocity | ||
| Magnitude U | 14.4 | Krzeminski (1974) |
| Magnitude B | 14.4 | |
| Magnitude V | 13.3 | |
| Magnitude R | ||
| Last modification date: Fri Aug 3 01:06:14 2007 |