Star · A6V
10 Hya
10 Hya is a main-sequence star of spectral type A6V in the constellation Hydra, 195.8 light-years from the Sun.
| Other names | HIP 42931 |
|---|---|
| Constellation | Hydra |
| Distance | 195.8 light-years (60.0 pc) |
| Apparent magnitude | magnitude 6.13 |
| Absolute magnitude | magnitude 2.24 |
| Spectral type | A6V |
| Surface temperature | 8,160 K |
| Luminosity | 11.7 L☉ |
| Radius | 1.71 R☉ |
| Mass | 1.85 M☉ (estimated) |
| Right ascension (J2000) | 8h 45m 01.3s |
| Declination (J2000) | +5° 40′ 50″ |
| Space velocity (relative to the Sun) | 10.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.13). Visible from the whole Northern Hemisphere and south to latitude 84° S. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1830. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.5 million years.
The Sun seen from there
From a planet around 10 Hya, the Sun would look like a star of magnitude 8.72, 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):
- HD 74156 9.65 light-years
- ULAS J084036.72+075933.6 10.9 light-years
- HIP 43618 14.5 light-years
- HIP 42084 16.2 light-years
- HIP 42049 17.3 light-years
- HIP 42396 17.3 light-years
- ULAS J085139.03+005340.9 17.5 light-years
- SDSS J083646.35+052642.6 19.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.