Star · M4V
WISE J122152.28-313600.8
WISE J122152.28-313600.8 is a main-sequence star of spectral type M4V in the constellation Hydra, 42.4 light-years from the Sun.
| Constellation | Hydra |
|---|---|
| Distance | 42.4 light-years (13.0 pc) |
| Apparent magnitude | magnitude 23.88 |
| Absolute magnitude | magnitude 23.31 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 7.45 × 10⁻⁷ L☉ |
| Radius | 0.00325 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 12h 21m 51.8s |
| Declination (J2000) | −31° 36′ 05″ |
| Space velocity (relative to the Sun) | 44.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 23.88. Visible from the whole Southern Hemisphere and north to latitude 58° N. South of latitude 58° S it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1984. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 752 thousand years.
The Sun seen from there
From a planet around WISE J122152.28-313600.8, the Sun would look like a star of magnitude 5.40, in the direction where our sky has the constellation Andromeda. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASS J12255432-2739466 3.08 light-years
- WISE J124629.65-313934.2 5.96 light-years
- 2MASSW J1155395-372735 6.84 light-years
- GJ 3708A 8.73 light-years
- Alchiba 8.77 light-years
- GJ 3692 8.89 light-years
- GJ 3709B 9.10 light-years
- 2MASS J11220826-3512363 9.73 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.