Star · F0V
122 Tau
122 Tau is a main-sequence star of spectral type F0V in the constellation Taurus, 168.1 light-years from the Sun.
| Other names | HIP 26382 |
|---|---|
| Constellation | Taurus |
| Distance | 168.1 light-years (51.5 pc) |
| Apparent magnitude | magnitude 5.53 |
| Absolute magnitude | magnitude 1.97 |
| Spectral type | F0V |
| Surface temperature | 7,890 K |
| Luminosity | 14.6 L☉ |
| Radius | 2.04 R☉ |
| Mass | 1.95 M☉ (estimated) |
| Right ascension (J2000) | 5h 37m 03.7s |
| Declination (J2000) | +17° 02′ 25″ |
| Space velocity (relative to the Sun) | 49.0 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.53). Visible from the whole Northern Hemisphere and south to latitude 73° S. North of latitude 73° N it never sets. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1858. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.0 million years.
The Sun seen from there
From a planet around 122 Tau, the Sun would look like a star of magnitude 8.39, in the direction where our sky has the constellation Ophiuchus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 25860 9.24 light-years
- HIP 25966 14.1 light-years
- HIP 24558 14.7 light-years
- HIP 25195 14.9 light-years
- HIP 26018 16.2 light-years
- HIP 24883 16.5 light-years
- HIP 26689 18.9 light-years
- HIP 27802 19.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.