Star · B2IV
ψ² Ori
ψ² Ori is a subgiant star of spectral type B2IV in the constellation Orion, 1,089 light-years from the Sun.
| Other names | HIP 25473 |
|---|---|
| Constellation | Orion |
| Distance | 1,089 light-years (334.0 pc) |
| Apparent magnitude | magnitude 4.59 |
| Absolute magnitude | magnitude −3.03 |
| Spectral type | B2IV |
| Surface temperature | 13,560 K |
| Luminosity | 3,420 L☉ |
| Radius | 10.6 R☉ |
| Mass | 9.29 M☉ (estimated) |
| Right ascension (J2000) | 5h 26m 50.2s |
| Declination (J2000) | +3° 05′ 44″ |
| Space velocity (relative to the Sun) | 12.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.59). Visible from the whole Northern Hemisphere and south to latitude 87° S. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 937. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 19 million years.
The Sun seen from there
From a planet around ψ² Ori, the Sun would look like a star of magnitude 12.45, in the direction where our sky has the constellation Ophiuchus. 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.