Star · M3V
PSO J039.6352-21.7746
PSO J039.6352-21.7746 is a main-sequence star of spectral type M3V in the constellation Cetus, 122.9 light-years from the Sun.
| Constellation | Cetus |
|---|---|
| Distance | 122.9 light-years (37.7 pc) |
| Apparent magnitude | magnitude 22.06 |
| Absolute magnitude | magnitude 19.18 |
| Spectral type | M3V |
| Surface temperature | 3,140 K |
| Luminosity | 2.17 × 10⁻⁵ L☉ |
| Radius | 0.0157 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 2h 38m 32.5s |
| Declination (J2000) | −21° 46′ 30″ |
| Space velocity (relative to the Sun) | 33.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.06. Visible from the whole Southern Hemisphere and north to latitude 68° N. South of latitude 68° S it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1903. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.2 million years.
The Sun seen from there
From a planet around PSO J039.6352-21.7746, the Sun would look like a star of magnitude 7.71, in the direction where our sky has the constellation Boötes. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 12837 5.19 light-years
- HIP 13008 6.66 light-years
- CFBDS J025401.67-182529.2 11.7 light-years
- CFBDS J025558.46-173020.2 12.8 light-years
- CFBDS J025840.60-182648.3 13.3 light-years
- HIP 12119 13.9 light-years
- HIP 14239 15.3 light-years
- HIP 11739 16.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.