Star · F3IV
HIP 104171
HIP 104171 is a subgiant star of spectral type F3IV in the constellation Cepheus, 165.1 light-years from the Sun.
| Constellation | Cepheus |
|---|---|
| Distance | 165.1 light-years (50.6 pc) |
| Apparent magnitude | magnitude 5.88 |
| Absolute magnitude | magnitude 2.36 |
| Spectral type | F3IV |
| Surface temperature | 6,960 K |
| Luminosity | 9.68 L☉ |
| Radius | 2.14 R☉ |
| Mass | 1.76 M☉ (estimated) |
| Right ascension (J2000) | 21h 06m 23.3s |
| Declination (J2000) | +71° 25′ 54″ |
| Space velocity (relative to the Sun) | 30.3 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.88). Visible from the whole Northern Hemisphere and south to latitude 19° S. North of latitude 19° N it never sets. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1861. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.9 million years.
The Sun seen from there
From a planet around HIP 104171, the Sun would look like a star of magnitude 8.35, in the direction where our sky has the constellation Carina. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 107055 10.2 light-years
- 2MASS J20111253+7153122 14.9 light-years
- HIP 103014 16.5 light-years
- 11 Cep 16.6 light-years
- HIP 102500 19.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.