Star · G0V
ι Per
ι Per is a main-sequence star of spectral type G0V in the constellation Perseus, 34.5 light-years from the Sun.
| Other names | Gl 124 · HIP 14632 |
|---|---|
| Constellation | Perseus |
| Distance | 34.5 light-years (10.6 pc) |
| Apparent magnitude | magnitude 4.05 |
| Absolute magnitude | magnitude 3.93 |
| Spectral type | G0V |
| Surface temperature | 5,990 K |
| Luminosity | 2.41 L☉ |
| Radius | 1.44 R☉ |
| Mass | 1.25 M☉ (estimated) |
| Right ascension (J2000) | 3h 09m 04.1s |
| Declination (J2000) | +49° 36′ 48″ |
| Space velocity (relative to the Sun) | 80.4 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.05). Visible from the whole Northern Hemisphere and south to latitude 40° S. North of latitude 40° 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 1992. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 612 thousand years.
The Sun seen from there
From a planet around ι Per, the Sun would look like a star of magnitude 4.95, in the direction where our sky has the constellation Lupus. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- θ Per 3.13 light-years
- Gl 107B 3.21 light-years
- GJ 3182 3.61 light-years
- WISE J033515.01+431045.1 6.36 light-years
- GJ 96 6.76 light-years
- WISE J043052.92+463331.6 8.33 light-years
- Gl 172 8.53 light-years
- GJ 3147 10.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.