Star · K0
GJ 9112
GJ 9112 is a main-sequence star of spectral type K0 in the constellation Cetus, 75.4 light-years from the Sun.
| Other names | HIP 15099 |
|---|---|
| Constellation | Cetus |
| Distance | 75.4 light-years (23.1 pc) |
| Apparent magnitude | magnitude 7.83 |
| Absolute magnitude | magnitude 6.01 |
| Spectral type | K0 |
| Surface temperature | 5,100 K |
| Luminosity | 0.444 L☉ |
| Radius | 0.852 R☉ |
| Mass | 0.816 M☉ (estimated) |
| Right ascension (J2000) | 3h 14m 47.3s |
| Declination (J2000) | +8° 58′ 51″ |
| Space velocity (relative to the Sun) | 64.6 km/s |
In the sky
Too faint for the naked eye (magnitude 7.83); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 81° S. 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 1951. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.3 million years.
The Sun seen from there
From a planet around GJ 9112, the Sun would look like a star of magnitude 6.65, 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 13976 5.56 light-years
- SDSS J032553.17+042540.1 7.07 light-years
- PSO J052.2746+13.3754 7.45 light-years
- GJ 3184 9.67 light-years
- GJ 1063 10.9 light-years
- Gl 114 11.8 light-years
- Gl 143.3 12.7 light-years
- Kaffaljidhma 12.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.