Star · G2V
GJ 9340
GJ 9340 is a main-sequence star of spectral type G2V in the constellation Hydra, 236.3 light-years from the Sun.
| Other names | HIP 53311 |
|---|---|
| Constellation | Hydra |
| Distance | 236.3 light-years (72.4 pc) |
| Apparent magnitude | magnitude 8.33 |
| Absolute magnitude | magnitude 4.03 |
| Spectral type | G2V |
| Surface temperature | 5,970 K |
| Luminosity | 2.2 L☉ |
| Radius | 1.38 R☉ |
| Mass | 1.22 M☉ (estimated) |
| Right ascension (J2000) | 10h 54m 12.2s |
| Declination (J2000) | −31° 09′ 35″ |
| Space velocity (relative to the Sun) | 153.9 km/s |
In the sky
Too faint for the naked eye (magnitude 8.33); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 59° N. South of latitude 59° S it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1790. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.2 million years.
The Sun seen from there
From a planet around GJ 9340, the Sun would look like a star of magnitude 9.13, in the direction where our sky has the constellation Pegasus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 52939 8.81 light-years
- HIP 52673 13.3 light-years
- HIP 53006 16.5 light-years
- HIP 51777 17.2 light-years
- HIP 53099 17.3 light-years
- HIP 52001 17.8 light-years
- HIP 54743 18.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.