Kappa Tucanae
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| Observation data Equinox J2000.0 |
|
|---|---|
| Constellation | Tucana |
| Right ascension | 01h 15m 46.1s |
| Declination | −68° 52' 34" |
| Apparent magnitude (V) | +4.25 |
| Distance | 66.6 ± 0.7 ly (20.4 ± 0.2 pc) |
| Spectral type | F6IV |
| Other designations | |
Kappa Tucanae (κ Tuc / κ Tucanae) is a star system in the constellation Tucana. It is approximately 66.6 light years from Earth and the combined apparent magnitude of the system is +4.25.
The system consists of two binary pairs separated by 5.3 arcminutes. The brightest star, Kappa Tucanae A, is a yellow-white F-type subgiant with an apparent magnitude of +5.1. Its binary companion, Kappa Tucanae B, has a magnitude of +7.3 and is 5 arcseconds, or at least 100 Astronomical Units from A. They complete one orbit every 1222 years.
The other binary pair, the magnitude +7.8 C, and the magnitude +8.2 D, are closer to one another, at 1.12 arcseconds, or at least 23 Astronomical Units. They orbit each other once every 86.2 years.
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