Star · M4V
WISE J222055.31-362817.4
WISE J222055.31-362817.4 is a main-sequence star of spectral type M4V in the constellation Grus, 34.9 light-years from the Sun.
| Constellation | Grus |
|---|---|
| Distance | 34.9 light-years (10.7 pc) |
| Apparent magnitude | magnitude 28.14 |
| Absolute magnitude | magnitude 27.99 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 9.97 × 10⁻⁹ L☉ |
| Radius | 3.76 × 10⁻⁴ R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 22h 20m 55.2s |
| Declination (J2000) | −36° 28′ 17″ |
| Space velocity (relative to the Sun) | 15.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 28.14. Visible from the whole Southern Hemisphere and north to latitude 54° N. South of latitude 54° S it never sets. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1991. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 619 thousand years.
The Sun seen from there
From a planet around WISE J222055.31-362817.4, the Sun would look like a star of magnitude 4.98, in the direction where our sky has the constellation Leo Minor. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASS J22282889-4310262 4.26 light-years
- GJ 4288A 6.36 light-years
- GJ 4207 7.43 light-years
- GJ 4198 8.44 light-years
- WISEPC J232519.54-410534.9 8.83 light-years
- Gl 868 9.99 light-years
- GJ 4248 10.1 light-years
- WISEPC J220922.10-273439.5 10.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.