Star · A3V
HIP 81659
HIP 81659 is a main-sequence star of spectral type A3V in the constellation Hercules, 295.9 light-years from the Sun.
| Constellation | Hercules |
|---|---|
| Distance | 295.9 light-years (90.7 pc) |
| Apparent magnitude | magnitude 6.08 |
| Absolute magnitude | magnitude 1.29 |
| Spectral type | A3V |
| Surface temperature | 9,590 K |
| Luminosity | 33.7 L☉ |
| Radius | 2.1 R☉ |
| Mass | 2.48 M☉ (estimated) |
| Right ascension (J2000) | 16h 40m 51.3s |
| Declination (J2000) | +12° 23′ 42″ |
| Space velocity (relative to the Sun) | 34.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.08). Visible from the whole Northern Hemisphere and south to latitude 78° S. North of latitude 78° 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 1730. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.2 million years.
The Sun seen from there
From a planet around HIP 81659, the Sun would look like a star of magnitude 9.62, 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):
- HIP 81218 8.19 light-years
- HIP 82350 12.9 light-years
- HIP 81073 16.3 light-years
- HIP 81626 17.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.