Star · F8IV
GJ 9706
GJ 9706 is a subgiant star of spectral type F8IV in the constellation Cepheus, 92.6 light-years from the Sun.
| Other names | HIP 102431 |
|---|---|
| Constellation | Cepheus |
| Distance | 92.6 light-years (28.4 pc) |
| Apparent magnitude | magnitude 4.52 |
| Absolute magnitude | magnitude 2.25 |
| Spectral type | F8IV |
| Surface temperature | 6,230 K |
| Luminosity | 10.9 L☉ |
| Radius | 2.83 R☉ |
| Mass | 1.82 M☉ (estimated) |
| Right ascension (J2000) | 20h 45m 21.1s |
| Declination (J2000) | +57° 34′ 47″ |
| Space velocity (relative to the Sun) | 46.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.52). Visible from the whole Northern Hemisphere and south to latitude 32° S. North of latitude 32° N it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1933. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.6 million years.
The Sun seen from there
From a planet around GJ 9706, the Sun would look like a star of magnitude 7.10, 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 99355 9.64 light-years
- WISE J204356.42+622048.9 10.1 light-years
- GJ 4150 11.1 light-years
- GJ 9677B 11.1 light-years
- GJ 9677A 11.1 light-years
- GJ 4156 11.7 light-years
- HIP 97438 12.6 light-years
- UGPS J20480024+503821.9 14.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.