Star · M4V
PSO J239.7016-23.2664
PSO J239.7016-23.2664 is a main-sequence star of spectral type M4V in the constellation Scorpius, 247.9 light-years from the Sun.
| Constellation | Scorpius |
|---|---|
| Distance | 247.9 light-years (76.0 pc) |
| Apparent magnitude | magnitude 21.80 |
| Absolute magnitude | magnitude 17.40 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.73 × 10⁻⁴ L☉ |
| Radius | 0.0495 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 15h 58m 48.4s |
| Declination (J2000) | −23° 15′ 59″ |
| Space velocity (relative to the Sun) | 9.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.80. Visible from the whole Southern Hemisphere and north to latitude 67° N. South of latitude 67° S it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1778. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.4 million years.
The Sun seen from there
From a planet around PSO J239.7016-23.2664, the Sun would look like a star of magnitude 9.23, in the direction where our sky has the constellation Taurus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- USco J160606.29-233513.3 7.37 light-years
- USco J155150.2-213457 12.1 light-years
- HIP 77543 12.2 light-years
- USco J160818.43-223225.0 14.1 light-years
- USco J161228.95-215936.1 14.7 light-years
- HIP 78002 15.4 light-years
- HIP 78123 18.3 light-years
- HIP 77000 18.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.