Star · K0III
HIP 51808
HIP 51808 is a giant star of spectral type K0III in the constellation Draco, 250.0 light-years from the Sun.
| Constellation | Draco |
|---|---|
| Distance | 250.0 light-years (76.7 pc) |
| Apparent magnitude | magnitude 4.86 |
| Absolute magnitude | magnitude 0.44 |
| Spectral type | K0III |
| Surface temperature | 4,850 K |
| Luminosity | 84.6 L☉ |
| Radius | 13 R☉ |
| Mass | 3.23 M☉ (estimated) |
| Right ascension (J2000) | 10h 35m 05.5s |
| Declination (J2000) | +75° 42′ 47″ |
| Space velocity (relative to the Sun) | 17.8 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.86). Visible from the whole Northern Hemisphere and south to latitude 14° S. North of latitude 14° N it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1776. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.4 million years.
The Sun seen from there
From a planet around HIP 51808, the Sun would look like a star of magnitude 9.25, in the direction where our sky has the constellation Octans. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 52029 9.11 light-years
- HIP 53774 14.0 light-years
- HIP 55378 14.5 light-years
- HIP 52290 15.6 light-years
- HIP 53656 15.7 light-years
- HIP 53683 18.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.