Star · F5III
HIP 81425
HIP 81425 is a giant star of spectral type F5III in the constellation Hercules, 202.3 light-years from the Sun.
| Constellation | Hercules |
|---|---|
| Distance | 202.3 light-years (62.0 pc) |
| Apparent magnitude | magnitude 6.30 |
| Absolute magnitude | magnitude 2.34 |
| Spectral type | F5III |
| Surface temperature | 6,710 K |
| Luminosity | 9.88 L☉ |
| Radius | 2.33 R☉ |
| Mass | 1.77 M☉ (estimated) |
| Right ascension (J2000) | 16h 37m 48.0s |
| Declination (J2000) | +13° 41′ 13″ |
| Space velocity (relative to the Sun) | 27.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.30). Visible from the whole Northern Hemisphere and south to latitude 76° S. North of latitude 76° N 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 1824. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.6 million years.
The Sun seen from there
From a planet around HIP 81425, the Sun would look like a star of magnitude 8.79, in the direction where our sky has the constellation Eridanus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASS J16382073+1327354 3.32 light-years
- HIP 81795 5.80 light-years
- SDSS J163304.13+115519.3 9.94 light-years
- HIP 81476 12.7 light-years
- HIP 82293 13.4 light-years
- HIP 82989 17.5 light-years
- HIP 80981 17.5 light-years
- HIP 81540 18.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.