Star · K2III
50 Hya
50 Hya is a giant star of spectral type K2III in the constellation Hydra, 222.6 light-years from the Sun.
| Other names | Gl 540.1 · HIP 69415 |
|---|---|
| Constellation | Hydra |
| Distance | 222.6 light-years (68.3 pc) |
| Apparent magnitude | magnitude 5.07 |
| Absolute magnitude | magnitude 0.90 |
| Spectral type | K2III |
| Surface temperature | 4,450 K |
| Luminosity | 70.8 L☉ |
| Radius | 14.2 R☉ |
| Mass | 3.07 M☉ (estimated) |
| Right ascension (J2000) | 14h 12m 46.0s |
| Declination (J2000) | −27° 15′ 40″ |
| Space velocity (relative to the Sun) | 30.3 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.07). Visible from the whole Southern Hemisphere and north to latitude 63° N. South of latitude 63° S it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1803. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.9 million years.
The Sun seen from there
From a planet around 50 Hya, the Sun would look like a star of magnitude 9.00, in the direction where our sky has the constellation Aries. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 69596 2.65 light-years
- HIP 69237 11.8 light-years
- HIP 69905 13.6 light-years
- PSO J213.3-027.3 15.5 light-years
- HIP 69682 16.1 light-years
- 2MASS J14075592-3033593 16.7 light-years
- HIP 68310 16.7 light-years
- HIP 68688 18.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.