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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← Star systems within 65–70 light-years →
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K III
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- Aldebaran (65.1 ± 1.3 ly; 2 stars)
- Epsilon Scorpii «Wei» (65.4 ± 1.1 ly; 1 star)
- Alpha Arietis «Hamal» (65.9 ± 1.3 ly; 1 star, 1 planet: b)
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F
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IV
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- Tau Cygni (66.4 ± 0.8 ly; 4 stars)
- Theta Draconis (68.3 ± 0.8 ly; 2 stars)
- 40 Leonis (69.0 ± 1.2 ly; 1 star)
- Iota Virginis «Syrma» (69.8 ± 1.3 ly; 1 star)
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V
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- Alpha Caeli (65.7 ± 0.7 ly; 2 stars)
- Kappa Tucanae (66.04 ± 1.2 ly; 4 stars)
- Gamma Doradus (66.2 ± 0.7 ly; 1 star)
- Sigma² Ursae Majoris (66.7 ± 0.9 ly; 3 stars)
- HR 1686 (68.4 ± 0.8 ly; 2 stars, 1 planet: b)
- B Carinae (69.8+5.4
−4.7 ly; 1 star)
- Kappa Reticuli (69.9 ± 0.7 ly; 2 stars)
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G
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IV
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- 94 Aquarii (67.6+8.3
−6.6 ly; 2 stars)
- Gliese 848.4 (69.4 ± 1.2 ly; 1 star, 1 planet: b)
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V
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- 53 Aquarii (65.5 ± 3.5 ly; 2 stars)
- GJ 3255 (67.4 ± 1.5 ly; 1 star, 1 planet: b)
- 51 Arietis (69.0 ± 1.3 ly; 1 star)
- c (16) Cygni (69.8 ± 0.8 ly; 2 stars, 1 planet: Bb)
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K V
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- GJ 3769 (66.6 ± 1.5 ly; 1 star, 1 planet: b)
- GJ 3651 (69.5 ± 1.5 ly; 1 star, 1 planet: b)
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DC
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- GJ 1205 (68.8+5.5
−4.7 ly; 1 star)
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T
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- WISE 0413-4750 (~66.2 ly; 1 brown dwarf)
- WISE 0123+4142 (~67.2 ly; 1 brown dwarf)
- WISE 0625+5646 (~67.2 ly; 1 brown dwarf)
- WISE 0821+1443 (~68.2 ly; 1 brown dwarf)
- WISE 0448-1935 (~69.8 ly; 1 brown dwarf)
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Stars of Tucana
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| Bayer |
- α
- β1
- β2
- β3
- γ
- δ
- ε
- ζ
- η
- θ
- ι
- κ
- λ1
- λ2
- ν
- ξ (47)
- π
- ρ
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| Bode |
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| Nearby |
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| Other |
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