Star · M4V
PSO J175.8169-20.4072
PSO J175.8169-20.4072 is a main-sequence star of spectral type M4V in the constellation Crater, 104.4 light-years from the Sun.
| Constellation | Crater |
|---|---|
| Distance | 104.4 light-years (32.0 pc) |
| Apparent magnitude | magnitude 24.24 |
| Absolute magnitude | magnitude 21.71 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 3.24 × 10⁻⁶ L☉ |
| Radius | 0.00677 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 11h 43m 16.1s |
| Declination (J2000) | −20° 24′ 24″ |
| Space velocity (relative to the Sun) | 20.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 24.24. Visible from the whole Southern Hemisphere and north to latitude 70° N. South of latitude 70° S it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1922. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.9 million years.
The Sun seen from there
From a planet around PSO J175.8169-20.4072, the Sun would look like a star of magnitude 7.36, in the direction where our sky has the constellation Pegasus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- CWISE J114120.42-211024.5 6.71 light-years
- HIP 55363 13.5 light-years
- HIP 56489 14.4 light-years
- HIP 56838 14.5 light-years
- HIP 57217 17.0 light-years
- HIP 59707 17.1 light-years
- HIP 55875 17.4 light-years
- HIP 60207 17.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.