Star · A2
52 Her
52 Her is a main-sequence star of spectral type A2 in the constellation Hercules, 173.9 light-years from the Sun.
| Other names | HIP 82321 |
|---|---|
| Constellation | Hercules |
| Distance | 173.9 light-years (53.3 pc) |
| Apparent magnitude | magnitude 4.82 |
| Absolute magnitude | magnitude 1.19 |
| Spectral type | A2 |
| Surface temperature | 9,160 K |
| Luminosity | 34.8 L☉ |
| Radius | 2.35 R☉ |
| Mass | 2.51 M☉ (estimated) |
| Right ascension (J2000) | 16h 49m 14.2s |
| Declination (J2000) | +45° 58′ 59″ |
| Space velocity (relative to the Sun) | 14.1 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.82). Visible from the whole Northern Hemisphere and south to latitude 44° S. North of latitude 44° 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 1852. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.1 million years.
The Sun seen from there
From a planet around 52 Her, the Sun would look like a star of magnitude 8.46, in the direction where our sky has the constellation Caelum. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- SDSS J164916.89+464340.0 3.20 light-years
- HIP 80818 12.0 light-years
- HIP 82644 13.7 light-years
- HIP 84169 17.1 light-years
- HIP 80232 18.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.