Star · M4V
PSO J218.4532+50.7231
PSO J218.4532+50.7231 is a main-sequence star of spectral type M4V in the constellation Boötes, 107.6 light-years from the Sun.
| Constellation | Boötes |
|---|---|
| Distance | 107.6 light-years (33.0 pc) |
| Apparent magnitude | magnitude 24.48 |
| Absolute magnitude | magnitude 21.89 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.76 × 10⁻⁶ L☉ |
| Radius | 0.00625 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 14h 33m 48.7s |
| Declination (J2000) | +50° 43′ 25″ |
| Space velocity (relative to the Sun) | 27.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 24.48. Visible from the whole Northern Hemisphere and south to latitude 39° S. North of latitude 39° N it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1918. 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 J218.4532+50.7231, the Sun would look like a star of magnitude 7.42, in the direction where our sky has the constellation Horologium. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Xuange 12.4 light-years
- ι Boo 12.5 light-years
- SDSS J143832.63+572216.9 12.8 light-years
- GJ 9474B 12.8 light-years
- HIP 73365 13.1 light-years
- HIP 73360 13.2 light-years
- SDSS J135923.99+472843.2 14.2 light-years
- Alkaid 14.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.