Star · B2IV
120 Tau
120 Tau is a subgiant star of spectral type B2IV in the constellation Taurus, 1,284 light-years from the Sun.
| Other names | HIP 26064 |
|---|---|
| Constellation | Taurus |
| Distance | 1,284 light-years (393.6 pc) |
| Apparent magnitude | magnitude 5.67 |
| Absolute magnitude | magnitude −2.31 |
| Spectral type | B2IV |
| Surface temperature | 10,410 K |
| Luminosity | 1,050 L☉ |
| Radius | 9.97 R☉ |
| Mass | 6.63 M☉ (estimated) |
| Right ascension (J2000) | 5h 33m 31.6s |
| Declination (J2000) | +18° 32′ 25″ |
| Space velocity (relative to the Sun) | 41.1 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.67). Visible from the whole Northern Hemisphere and south to latitude 71° S. North of latitude 71° 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 742. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 23 million years.
The Sun seen from there
From a planet around 120 Tau, the Sun would look like a star of magnitude 12.81, in the direction where our sky has the constellation Ophiuchus. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.