Star · G8
56 Hya
56 Hya is a supergiant star of spectral type G8 in the constellation Hydra, 320.6 light-years from the Sun.
| Other names | HIP 72357 |
|---|---|
| Constellation | Hydra |
| Distance | 320.6 light-years (98.3 pc) |
| Apparent magnitude | magnitude 5.23 |
| Absolute magnitude | magnitude 0.27 |
| Spectral type | G8 |
| Surface temperature | 4,900 K |
| Luminosity | 96.5 L☉ |
| Radius | 13.7 R☉ |
| Mass | 3.35 M☉ (estimated) |
| Right ascension (J2000) | 14h 47m 44.8s |
| Declination (J2000) | −26° 05′ 15″ |
| Space velocity (relative to the Sun) | 18.4 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.23). 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 May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1705. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.7 million years.
The Sun seen from there
From a planet around 56 Hya, the Sun would look like a star of magnitude 9.79, 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 72288 4.39 light-years
- HIP 73501 19.2 light-years
- HIP 73222 19.5 light-years
- HIP 71697 19.6 light-years
- HIP 73386 19.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.