Star · A7IV
97 Tau
97 Tau is a subgiant star of spectral type A7IV in the constellation Taurus, 124.9 light-years from the Sun.
| Other names | HIP 22565 |
|---|---|
| Constellation | Taurus |
| Distance | 124.9 light-years (38.3 pc) |
| Apparent magnitude | magnitude 5.08 |
| Absolute magnitude | magnitude 2.17 |
| Spectral type | A7IV |
| Surface temperature | 8,060 K |
| Luminosity | 12.4 L☉ |
| Radius | 1.8 R☉ |
| Mass | 1.88 M☉ (estimated) |
| Right ascension (J2000) | 4h 51m 22.5s |
| Declination (J2000) | +18° 50′ 24″ |
| Space velocity (relative to the Sun) | 40.4 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.08). 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 1901. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.2 million years.
The Sun seen from there
From a planet around 97 Tau, the Sun would look like a star of magnitude 7.74, 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 23396 6.85 light-years
- HIP 23286 11.0 light-years
- HIP 21543 11.1 light-years
- HIP 21158 11.8 light-years
- HIP 22496 12.3 light-years
- HIP 23443 12.6 light-years
- WISEA J043642.75+190134.8 12.9 light-years
- HIP 22906 13.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.