Star · A3V
δ Hyi
δ Hyi is a main-sequence star of spectral type A3V in the constellation Hydrus, 140.1 light-years from the Sun.
| Other names | Gl 97.1 · HIP 11001 |
|---|---|
| Constellation | Hydrus |
| Distance | 140.1 light-years (43.0 pc) |
| Apparent magnitude | magnitude 4.08 |
| Absolute magnitude | magnitude 0.91 |
| Spectral type | A3V |
| Surface temperature | 9,720 K |
| Luminosity | 48.6 L☉ |
| Radius | 2.46 R☉ |
| Mass | 2.75 M☉ (estimated) |
| Right ascension (J2000) | 2h 21m 45.0s |
| Declination (J2000) | −68° 39′ 34″ |
| Space velocity (relative to the Sun) | 10.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.08). Visible from the whole Southern Hemisphere and north to latitude 21° N. South of latitude 21° 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 1886. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.5 million years.
The Sun seen from there
From a planet around δ Hyi, the Sun would look like a star of magnitude 8.00, 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 J01531463-6744181 7.45 light-years
- HD 20003 13.1 light-years
- HIP 10842 13.1 light-years
- ε Hyi 13.6 light-years
- 2MASS J03032042-7312300 14.4 light-years
- HIP 11476 17.2 light-years
- HIP 15968 17.4 light-years
- HIP 10874 17.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.