Star · K3III
HIP 47310
HIP 47310 is a giant star of spectral type K3III in the constellation Hydra, 315.6 light-years from the Sun.
| Constellation | Hydra |
|---|---|
| Distance | 315.6 light-years (96.8 pc) |
| Apparent magnitude | magnitude 4.68 |
| Absolute magnitude | magnitude −0.25 |
| Spectral type | K3III |
| Surface temperature | 4,100 K |
| Luminosity | 276 L☉ |
| Radius | 32.9 R☉ |
| Mass | 4.52 M☉ (estimated) |
| Right ascension (J2000) | 9h 38m 27.3s |
| Declination (J2000) | +4° 38′ 58″ |
| Space velocity (relative to the Sun) | 90.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.68). Visible from the whole Northern Hemisphere and south to latitude 85° S. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1710. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.6 million years.
The Sun seen from there
From a planet around HIP 47310, the Sun would look like a star of magnitude 9.76, 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):
- HIP 47897 12.0 light-years
- HIP 46834 13.1 light-years
- HIP 46542 13.1 light-years
- PSO J146.0144+05.1319 16.2 light-years
- HIP 46447 19.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.