Star · B2IV
133 Tau
133 Tau is a subgiant star of spectral type B2IV in the constellation Taurus, 942.7 light-years from the Sun.
| Other names | HIP 27364 |
|---|---|
| Constellation | Taurus |
| Distance | 942.7 light-years (289.0 pc) |
| Apparent magnitude | magnitude 5.28 |
| Absolute magnitude | magnitude −2.02 |
| Spectral type | B2IV |
| Surface temperature | 12,610 K |
| Luminosity | 1,160 L☉ |
| Radius | 7.15 R☉ |
| Mass | 6.83 M☉ (estimated) |
| Right ascension (J2000) | 5h 47m 42.9s |
| Declination (J2000) | +13° 53′ 59″ |
| Space velocity (relative to the Sun) | 33.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.28). Visible from the whole Northern Hemisphere and south to latitude 76° S. North of latitude 76° 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 1083. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 17 million years.
The Sun seen from there
From a planet around 133 Tau, the Sun would look like a star of magnitude 12.13, in the direction where our sky has the constellation Serpens. 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.