Star · B3V
HIP 105259
HIP 105259 is a main-sequence star of spectral type B3V in the constellation Cepheus, 5,881 light-years from the Sun.
| Constellation | Cepheus |
|---|---|
| Distance | 5,881 light-years (1,803 pc) |
| Apparent magnitude | magnitude 5.51 |
| Absolute magnitude | magnitude −5.77 |
| Spectral type | B3V |
| Surface temperature | 4,480 K |
| Luminosity | 32,100 L☉ |
| Radius | 297 R☉ |
| Mass | 17.6 M☉ (estimated) |
| Right ascension (J2000) | 21h 19m 15.7s |
| Declination (J2000) | +58° 37′ 25″ |
| Space velocity (relative to the Sun) | 45.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.51). Visible from the whole Northern Hemisphere and south to latitude 31° S. North of latitude 31° N it never sets. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 5,881 years ago. At that time the first farming villages were being founded; there was no writing yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 104 million years.
The Sun seen from there
From a planet around HIP 105259, the Sun would look like a star of magnitude 16.11, in the direction where our sky has the constellation Carina. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.