Star · F7V
50 Per
50 Per is a main-sequence star of spectral type F7V in the constellation Perseus, 69.1 light-years from the Sun.
| Other names | Gl 161.1 · HIP 19335 |
|---|---|
| Constellation | Perseus |
| Distance | 69.1 light-years (21.2 pc) |
| Apparent magnitude | magnitude 5.52 |
| Absolute magnitude | magnitude 3.89 |
| Spectral type | F7V |
| Surface temperature | 6,300 K |
| Luminosity | 2.41 L☉ |
| Radius | 1.3 R☉ |
| Mass | 1.25 M☉ (estimated) |
| Right ascension (J2000) | 4h 08m 36.6s |
| Declination (J2000) | +38° 02′ 23″ |
| Space velocity (relative to the Sun) | 37.0 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.52). Visible from the whole Northern Hemisphere and south to latitude 52° S. North of latitude 52° 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 1957. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.2 million years.
The Sun seen from there
From a planet around 50 Per, the Sun would look like a star of magnitude 6.46, in the direction where our sky has the constellation Scorpius. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 19255 0.32 light-years
- GJ 1070 5.12 light-years
- 2MASS J04134574+3709087 6.48 light-years
- HIP 20222 8.88 light-years
- Gl 158 9.38 light-years
- HIP 19930 11.0 light-years
- GJ 1064A 11.1 light-years
- WISEA J032600.28+421056.8 11.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.