Star · B3IV
6 Cep
6 Cep is a subgiant star of spectral type B3IV in the constellation Cepheus, 1,316 light-years from the Sun.
| Other names | HIP 105268 |
|---|---|
| Constellation | Cepheus |
| Distance | 1,316 light-years (403.4 pc) |
| Apparent magnitude | magnitude 5.19 |
| Absolute magnitude | magnitude −2.84 |
| Spectral type | B3IV |
| Surface temperature | 10,720 K |
| Luminosity | 1,810 L☉ |
| Radius | 12.3 R☉ |
| Mass | 7.74 M☉ (estimated) |
| Right ascension (J2000) | 21h 19m 22.2s |
| Declination (J2000) | +64° 52′ 19″ |
| Space velocity (relative to the Sun) | 23.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.19). Visible from the whole Northern Hemisphere and south to latitude 25° S. North of latitude 25° 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 710. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 23 million years.
The Sun seen from there
From a planet around 6 Cep, the Sun would look like a star of magnitude 12.86, 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.