Star · M4V
PSO J031.5651+20.9097
PSO J031.5651+20.9097 is a main-sequence star of spectral type M4V in the constellation Aries, 88.1 light-years from the Sun.
| Constellation | Aries |
|---|---|
| Distance | 88.1 light-years (27.0 pc) |
| Apparent magnitude | magnitude 24.31 |
| Absolute magnitude | magnitude 22.15 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.16 × 10⁻⁶ L☉ |
| Radius | 0.00553 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 2h 06m 15.5s |
| Declination (J2000) | +20° 54′ 36″ |
| Space velocity (relative to the Sun) | 32.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 24.31. Visible from the whole Northern Hemisphere and south to latitude 69° S. North of latitude 69° N 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 1938. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.6 million years.
The Sun seen from there
From a planet around PSO J031.5651+20.9097, the Sun would look like a star of magnitude 6.99, in the direction where our sky has the constellation Virgo. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 11152 6.76 light-years
- HIP 10505 7.22 light-years
- 2MASSW J0208549+250048 9.28 light-years
- η Ari 10.1 light-years
- WISEA J022721.93+235654.3 10.7 light-years
- GJ 3156 10.8 light-years
- HIP 9829 11.7 light-years
- ULAS J015024.37+135924.0 12.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.