Star · B9III
ε Hyi
ε Hyi is a giant star of spectral type B9III in the constellation Hydrus, 153.0 light-years from the Sun.
| Other names | HIP 12394 |
|---|---|
| Constellation | Hydrus |
| Distance | 153.0 light-years (46.9 pc) |
| Apparent magnitude | magnitude 4.12 |
| Absolute magnitude | magnitude 0.76 |
| Spectral type | B9III |
| Surface temperature | 10,960 K |
| Luminosity | 67.9 L☉ |
| Radius | 2.29 R☉ |
| Mass | 3.03 M☉ (estimated) |
| Right ascension (J2000) | 2h 39m 35.4s |
| Declination (J2000) | −68° 16′ 01″ |
| Space velocity (relative to the Sun) | 25.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.12). Visible from the whole Southern Hemisphere and north to latitude 22° N. South of latitude 22° S it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1873. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.7 million years.
The Sun seen from there
From a planet around ε Hyi, the Sun would look like a star of magnitude 8.19, in the direction where our sky has the constellation Ursa Minor. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASS J02340093-6442068 10.8 light-years
- HIP 11357 11.2 light-years
- HIP 13935 12.9 light-years
- δ Hyi 13.6 light-years
- HIP 11866 14.5 light-years
- HIP 12726 14.6 light-years
- 2MASS J03032042-7312300 16.7 light-years
- HIP 14739 17.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.