Star · M4V
2MASS J12255432-2739466
2MASS J12255432-2739466 is a main-sequence star of spectral type M4V in the constellation Hydra, 43.1 light-years from the Sun.
| Constellation | Hydra |
|---|---|
| Distance | 43.1 light-years (13.2 pc) |
| Apparent magnitude | magnitude 22.76 |
| Absolute magnitude | magnitude 22.16 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.15 × 10⁻⁶ L☉ |
| Radius | 0.00552 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 12h 25m 54.4s |
| Declination (J2000) | −27° 39′ 49″ |
| Space velocity (relative to the Sun) | 46.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.76. Visible from the whole Southern Hemisphere and north to latitude 62° N. South of latitude 62° 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 1983. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 764 thousand years.
The Sun seen from there
From a planet around 2MASS J12255432-2739466, the Sun would look like a star of magnitude 5.43, 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):
- WISE J122152.28-313600.8 3.08 light-years
- GJ 3708A 6.38 light-years
- GJ 3709B 6.45 light-years
- WISE J124629.65-313934.2 6.82 light-years
- Alchiba 7.00 light-years
- GJ 3692 9.38 light-years
- 2MASSW J1155395-372735 9.46 light-years
- WISEPA J132233.66-234017.1 9.95 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.