Star · B8III
HIP 103810
HIP 103810 is a giant star of spectral type B8III in the constellation Cepheus, 1,084 light-years from the Sun.
| Constellation | Cepheus |
|---|---|
| Distance | 1,084 light-years (332.5 pc) |
| Apparent magnitude | magnitude 5.83 |
| Absolute magnitude | magnitude −1.78 |
| Spectral type | B8III |
| Surface temperature | 10,910 K |
| Luminosity | 702 L☉ |
| Radius | 7.41 R☉ |
| Mass | 5.91 M☉ (estimated) |
| Right ascension (J2000) | 21h 02m 09.0s |
| Declination (J2000) | +56° 40′ 11″ |
| Space velocity (relative to the Sun) | 24.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.83). Visible from the whole Northern Hemisphere and south to latitude 33° S. North of latitude 33° 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 around the year 942. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 19 million years.
The Sun seen from there
From a planet around HIP 103810, the Sun would look like a star of magnitude 12.44, in the direction where our sky has the constellation Vela. 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.