Star · F2V
HIP 9685
HIP 9685 is a main-sequence star of spectral type F2V in the constellation Eridanus, 149.4 light-years from the Sun.
| Constellation | Eridanus |
|---|---|
| Distance | 149.4 light-years (45.8 pc) |
| Apparent magnitude | magnitude 6.45 |
| Absolute magnitude | magnitude 3.15 |
| Spectral type | F2V |
| Surface temperature | 6,960 K |
| Luminosity | 4.69 L☉ |
| Radius | 1.49 R☉ |
| Mass | 1.47 M☉ (estimated) |
| Right ascension (J2000) | 2h 04m 35.1s |
| Declination (J2000) | −54° 52′ 54″ |
| Space velocity (relative to the Sun) | 25.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.45). Visible from the whole Southern Hemisphere and north to latitude 35° N. South of latitude 35° S it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1877. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.7 million years.
The Sun seen from there
From a planet around HIP 9685, the Sun would look like a star of magnitude 8.13, in the direction where our sky has the constellation Ursa Major. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASS J02265658-5327032 9.36 light-years
- φ Eri 10.0 light-years
- HIP 7699 10.9 light-years
- HIP 8035 11.5 light-years
- HIP 7990 12.2 light-years
- HIP 9902 12.6 light-years
- HIP 9892 13.2 light-years
- HIP 7429 13.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.