Star · K0
Gl 340.2
Gl 340.2 is a main-sequence star of spectral type K0 in the constellation Hydra, 93.3 light-years from the Sun.
| Other names | HIP 45737 |
|---|---|
| Constellation | Hydra |
| Distance | 93.3 light-years (28.6 pc) |
| Apparent magnitude | magnitude 8.15 |
| Absolute magnitude | magnitude 5.87 |
| Spectral type | K0 |
| Surface temperature | 5,110 K |
| Luminosity | 0.506 L☉ |
| Radius | 0.909 R☉ |
| Mass | 0.844 M☉ (estimated) |
| Right ascension (J2000) | 9h 19m 28.3s |
| Declination (J2000) | +0° 53′ 50″ |
| Space velocity (relative to the Sun) | 57.0 km/s |
In the sky
Too faint for the naked eye (magnitude 8.15); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 89° S. It stands highest at midnight in February, 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 1.7 million years.
The Sun seen from there
From a planet around Gl 340.2, the Sun would look like a star of magnitude 7.11, in the direction where our sky has the constellation Aquarius. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3555 5.69 light-years
- HIP 47307 9.34 light-years
- GJ 3538 11.2 light-years
- HIP 48016 12.3 light-years
- ULAS J091544.13+053104.1 13.7 light-years
- HIP 45621 14.1 light-years
- Gl 344B 14.5 light-years
- Gl 344A 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.