Star · M4V
PSO J231.7900-26.4494
PSO J231.7900-26.4494 is a main-sequence star of spectral type M4V in the constellation Libra, 231.6 light-years from the Sun.
| Constellation | Libra |
|---|---|
| Distance | 231.6 light-years (71.0 pc) |
| Apparent magnitude | magnitude 21.46 |
| Absolute magnitude | magnitude 17.20 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.06 × 10⁻⁴ L☉ |
| Radius | 0.0541 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 15h 27m 09.6s |
| Declination (J2000) | −26° 26′ 58″ |
| Space velocity (relative to the Sun) | 12.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.46. Visible from the whole Southern Hemisphere and north to latitude 64° N. South of latitude 64° 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 1794. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.1 million years.
The Sun seen from there
From a planet around PSO J231.7900-26.4494, the Sun would look like a star of magnitude 9.09, in the direction where our sky has the constellation Aries. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 76304 11.2 light-years
- HIP 77235 18.3 light-years
- HIP 75948 19.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.