Star · M4V
PSO J331.9397-07.0570
PSO J331.9397-07.0570 is a main-sequence star of spectral type M4V in the constellation Aquarius, 127.2 light-years from the Sun.
| Constellation | Aquarius |
|---|---|
| Distance | 127.2 light-years (39.0 pc) |
| Apparent magnitude | magnitude 22.91 |
| Absolute magnitude | magnitude 19.95 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.64 × 10⁻⁵ L☉ |
| Radius | 0.0152 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 22h 07m 45.4s |
| Declination (J2000) | −7° 03′ 24″ |
| Space velocity (relative to the Sun) | 21.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.91. Visible from the whole Southern Hemisphere and north to latitude 83° N. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1899. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.3 million years.
The Sun seen from there
From a planet around PSO J331.9397-07.0570, the Sun would look like a star of magnitude 7.79, in the direction where our sky has the constellation Leo. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 109110 9.13 light-years
- HIP 108506 9.21 light-years
- HIP 109646 12.5 light-years
- HIP 110106 13.7 light-years
- HIP 111274 14.6 light-years
- HIP 109528 14.6 light-years
- Sadachbia 14.7 light-years
- HIP 110091 18.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.