Star · F5II
HIP 82798
HIP 82798 is a bright giant star of spectral type F5II in the constellation Hercules, 244.1 light-years from the Sun.
| Constellation | Hercules |
|---|---|
| Distance | 244.1 light-years (74.8 pc) |
| Apparent magnitude | magnitude 6.35 |
| Absolute magnitude | magnitude 1.98 |
| Spectral type | F5II |
| Surface temperature | 7,220 K |
| Luminosity | 13.8 L☉ |
| Radius | 2.37 R☉ |
| Mass | 1.93 M☉ (estimated) |
| Right ascension (J2000) | 16h 55m 16.0s |
| Declination (J2000) | +13° 37′ 12″ |
| Space velocity (relative to the Sun) | 20.8 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.35). 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 June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1782. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.3 million years.
The Sun seen from there
From a planet around HIP 82798, the Sun would look like a star of magnitude 9.20, 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):
- ι Oph 15.2 light-years
- 2MASS J16410015+1335591 17.2 light-years
- HIP 83123 17.8 light-years
- HIP 81588 18.7 light-years
- HIP 82753 18.7 light-years
- HIP 83768 19.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.