Star · M4V
PSO J135.7840+16.9932
PSO J135.7840+16.9932 is a main-sequence star of spectral type M4V in the constellation Cancer, 172.9 light-years from the Sun.
| Constellation | Cancer |
|---|---|
| Distance | 172.9 light-years (53.0 pc) |
| Apparent magnitude | magnitude 23.99 |
| Absolute magnitude | magnitude 20.37 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.12 × 10⁻⁵ L☉ |
| Radius | 0.0126 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 9h 03m 08.2s |
| Declination (J2000) | +16° 59′ 36″ |
| Space velocity (relative to the Sun) | 11.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 23.99. Visible from the whole Northern Hemisphere and south to latitude 73° S. North of latitude 73° N it never sets. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1853. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.1 million years.
The Sun seen from there
From a planet around PSO J135.7840+16.9932, the Sun would look like a star of magnitude 8.45, in the direction where our sky has the constellation Capricornus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 43751 11.2 light-years
- HIP 43418 13.2 light-years
- CFBDS J090139.82+174051.3 13.2 light-years
- HIP 44541 13.5 light-years
- ο¹ Cnc 14.0 light-years
- HIP 43552 14.5 light-years
- ο² Cnc 14.5 light-years
- Acubens 16.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.