Star · A2V
75 Ori
75 Ori is a main-sequence star of spectral type A2V in the constellation Orion, 269.2 light-years from the Sun.
| Other names | HIP 29850 |
|---|---|
| Constellation | Orion |
| Distance | 269.2 light-years (82.5 pc) |
| Apparent magnitude | magnitude 5.39 |
| Absolute magnitude | magnitude 0.81 |
| Spectral type | A2V |
| Surface temperature | 8,970 K |
| Luminosity | 48.2 L☉ |
| Radius | 2.87 R☉ |
| Mass | 2.75 M☉ (estimated) |
| Right ascension (J2000) | 6h 17m 06.6s |
| Declination (J2000) | +9° 56′ 33″ |
| Space velocity (relative to the Sun) | 26.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.39). Visible from the whole Northern Hemisphere and south to latitude 80° 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 1757. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.8 million years.
The Sun seen from there
From a planet around 75 Ori, the Sun would look like a star of magnitude 9.41, in the direction where our sky has the constellation Serpens. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 30804 14.2 light-years
- HIP 29002 14.6 light-years
- HIP 30051 17.9 light-years
- HIP 29544 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.