Star · B9V
ι PsA
ι PsA is a main-sequence star of spectral type B9V in the constellation Piscis Austrinus, 212.7 light-years from the Sun.
| Other names | HIP 107380 |
|---|---|
| Constellation | Piscis Austrinus |
| Distance | 212.7 light-years (65.2 pc) |
| Apparent magnitude | magnitude 4.35 |
| Absolute magnitude | magnitude 0.28 |
| Spectral type | B9V |
| Surface temperature | 10,840 K |
| Luminosity | 104 L☉ |
| Radius | 2.9 R☉ |
| Mass | 3.43 M☉ (estimated) |
| Right ascension (J2000) | 21h 44m 56.8s |
| Declination (J2000) | −33° 01′ 33″ |
| Space velocity (relative to the Sun) | 30.8 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.35). Visible from the whole Southern Hemisphere and north to latitude 57° N. South of latitude 57° S 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 1813. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.8 million years.
The Sun seen from there
From a planet around ι PsA, the Sun would look like a star of magnitude 8.90, in the direction where our sky has the constellation Leo Minor. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 107370 1.24 light-years
- HIP 106369 12.0 light-years
- HIP 106452 12.4 light-years
- HIP 106701 14.2 light-years
- HIP 105938 15.9 light-years
- HIP 105872 16.0 light-years
- HIP 105620 18.3 light-years
- HIP 109404 19.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.