Star · B1V
ψ¹ Ori
ψ¹ Ori is a main-sequence star of spectral type B1V in the constellation Orion, 1,112 light-years from the Sun.
| Other names | HIP 25302 |
|---|---|
| Constellation | Orion |
| Distance | 1,112 light-years (341.0 pc) |
| Apparent magnitude | magnitude 4.89 |
| Absolute magnitude | magnitude −2.77 |
| Spectral type | B1V |
| Surface temperature | 13,580 K |
| Luminosity | 2,720 L☉ |
| Radius | 9.41 R☉ |
| Mass | 8.7 M☉ (estimated) |
| Right ascension (J2000) | 5h 24m 44.8s |
| Declination (J2000) | +1° 50′ 47″ |
| Space velocity (relative to the Sun) | 19.1 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.89). Visible from the whole Northern Hemisphere and south to latitude 88° 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 914. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 20 million years.
The Sun seen from there
From a planet around ψ¹ Ori, the Sun would look like a star of magnitude 12.49, 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.