Star · B8V
δ Tuc
δ Tuc is a main-sequence star of spectral type B8V in the constellation Tucana, 281.2 light-years from the Sun.
| Other names | HIP 110838 |
|---|---|
| Constellation | Tucana |
| Distance | 281.2 light-years (86.2 pc) |
| Apparent magnitude | magnitude 4.51 |
| Absolute magnitude | magnitude −0.17 |
| Spectral type | B8V |
| Surface temperature | 10,500 K |
| Luminosity | 149 L☉ |
| Radius | 3.69 R☉ |
| Mass | 3.79 M☉ (estimated) |
| Right ascension (J2000) | 22h 27m 20.0s |
| Declination (J2000) | −64° 57′ 59″ |
| Space velocity (relative to the Sun) | 29.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.51). Visible from the whole Southern Hemisphere and north to latitude 25° N. South of latitude 25° S it never sets. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1745. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.0 million years.
The Sun seen from there
From a planet around δ Tuc, the Sun would look like a star of magnitude 9.51, in the direction where our sky has the constellation Ursa Major. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 110939 2.03 light-years
- HIP 111286 3.61 light-years
- HIP 110567 14.6 light-years
- ν Tuc 15.1 light-years
- HIP 109976 17.0 light-years
- HIP 110709 17.7 light-years
- HIP 111993 18.8 light-years
- HIP 112826 19.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.