Star · M4V
S Ori 73
S Ori 73 is a main-sequence star of spectral type M4V in the constellation Orion, 619.7 light-years from the Sun.
| Constellation | Orion |
|---|---|
| Distance | 619.7 light-years (190.0 pc) |
| Apparent magnitude | magnitude 28.27 |
| Absolute magnitude | magnitude 21.88 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.79 × 10⁻⁶ L☉ |
| Radius | 0.00629 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 5h 38m 14.3s |
| Declination (J2000) | −2° 45′ 12″ |
| Space velocity (relative to the Sun) | 39.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 28.27. Visible from the whole Southern Hemisphere and north to latitude 87° N. 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 1406. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 11 million years.
The Sun seen from there
From a planet around S Ori 73, the Sun would look like a star of magnitude 11.22, 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.