Star · K1IV
HIP 16641
HIP 16641 is a subgiant star of spectral type K1IV in the constellation Taurus, 136.7 light-years from the Sun.
| Constellation | Taurus |
|---|---|
| Distance | 136.7 light-years (41.9 pc) |
| Apparent magnitude | magnitude 6.14 |
| Absolute magnitude | magnitude 3.03 |
| Spectral type | K1IV |
| Surface temperature | 5,020 K |
| Luminosity | 7.17 L☉ |
| Radius | 3.54 R☉ |
| Mass | 1.64 M☉ (estimated) |
| Right ascension (J2000) | 3h 34m 08.4s |
| Declination (J2000) | +17° 49′ 58″ |
| Space velocity (relative to the Sun) | 65.4 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.14). Visible from the whole Northern Hemisphere and south to latitude 72° S. North of latitude 72° N it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1889. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.4 million years.
The Sun seen from there
From a planet around HIP 16641, the Sun would look like a star of magnitude 7.94, in the direction where our sky has the constellation Libra. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 16788 5.04 light-years
- HIP 15724 6.78 light-years
- GJ 3239A 10.6 light-years
- HIP 18170 11.7 light-years
- HIP 15062 11.7 light-years
- HIP 18327 12.5 light-years
- Hya02 13.2 light-years
- PSO J049.1124+17.0885 13.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.