Star · M4V
PSO J055.0493-21.1704
PSO J055.0493-21.1704 is a main-sequence star of spectral type M4V in the constellation Eridanus, 97.8 light-years from the Sun.
| Constellation | Eridanus |
|---|---|
| Distance | 97.8 light-years (30.0 pc) |
| Apparent magnitude | magnitude 24.45 |
| Absolute magnitude | magnitude 22.06 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.35 × 10⁻⁶ L☉ |
| Radius | 0.00577 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 3h 40m 11.6s |
| Declination (J2000) | −21° 10′ 12″ |
| Space velocity (relative to the Sun) | 43.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 24.45. Visible from the whole Southern Hemisphere and north to latitude 69° N. South of latitude 69° S it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1928. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.7 million years.
The Sun seen from there
From a planet around PSO J055.0493-21.1704, the Sun would look like a star of magnitude 7.22, in the direction where our sky has the constellation Serpens. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASSW J0337036-175807 5.89 light-years
- WISEA J032440.23-191905.6 6.97 light-years
- HIP 16247 7.57 light-years
- HIP 18115 9.93 light-years
- HIP 17956 10.4 light-years
- 2MASS J03264225-2102057 12.5 light-years
- 2MASSW J0309088-194938 12.8 light-years
- HIP 14623 13.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.