Star · K7
GJ 9212B
GJ 9212B is a main-sequence star of spectral type K7 in the constellation Canis Major, 96.0 light-years from the Sun.
| Constellation | Canis Major |
|---|---|
| Distance | 96.0 light-years (29.4 pc) |
| Apparent magnitude | magnitude 11.57 |
| Absolute magnitude | magnitude 9.23 |
| Spectral type | K7 |
| Surface temperature | 4,650 K |
| Luminosity | 0.0289 L☉ |
| Radius | 0.262 R☉ |
| Mass | 0.406 M☉ (estimated) |
| Right ascension (J2000) | 6h 27m 10.9s |
| Declination (J2000) | −25° 51′ 19″ |
| Space velocity (relative to the Sun) | 38.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.57. Visible from the whole Southern Hemisphere and north to latitude 64° N. South of latitude 64° S it never sets. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1930. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.7 million years.
The Sun seen from there
From a planet around GJ 9212B, the Sun would look like a star of magnitude 7.17, in the direction where our sky has the constellation Hercules. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 9212A 0.12 light-years
- HIP 30344 2.70 light-years
- Gl 236 3.44 light-years
- HIP 30225 6.79 light-years
- GJ 2049 9.63 light-years
- Gl 243 10.7 light-years
- HIP 33037 11.5 light-years
- SIPS J0614-2019 11.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.