Star · B8V
30 Per
30 Per is a main-sequence star of spectral type B8V in the constellation Perseus, 665.3 light-years from the Sun.
| Other names | HIP 15338 |
|---|---|
| Constellation | Perseus |
| Distance | 665.3 light-years (204.0 pc) |
| Apparent magnitude | magnitude 5.49 |
| Absolute magnitude | magnitude −1.06 |
| Spectral type | B8V |
| Surface temperature | 10,940 K |
| Luminosity | 363 L☉ |
| Radius | 5.3 R☉ |
| Mass | 4.89 M☉ (estimated) |
| Right ascension (J2000) | 3h 17m 47.4s |
| Declination (J2000) | +44° 01′ 30″ |
| Space velocity (relative to the Sun) | 35.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.49). Visible from the whole Northern Hemisphere and south to latitude 46° S. North of latitude 46° N it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1361. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 12 million years.
The Sun seen from there
From a planet around 30 Per, the Sun would look like a star of magnitude 11.38, in the direction where our sky has the constellation Lupus. 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.