Star · M4V
2MASS J12563961-2718455
2MASS J12563961-2718455 is a main-sequence star of spectral type M4V in the constellation Hydra, 146.8 light-years from the Sun.
| Constellation | Hydra |
|---|---|
| Distance | 146.8 light-years (45.0 pc) |
| Apparent magnitude | magnitude 21.92 |
| Absolute magnitude | magnitude 18.65 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 5.43 × 10⁻⁵ L☉ |
| Radius | 0.0277 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 12h 56m 39.6s |
| Declination (J2000) | −27° 18′ 45″ |
| Space velocity (relative to the Sun) | 21.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.92. Visible from the whole Southern Hemisphere and north to latitude 63° N. South of latitude 63° S it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1879. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.6 million years.
The Sun seen from there
From a planet around 2MASS J12563961-2718455, the Sun would look like a star of magnitude 8.10, in the direction where our sky has the constellation Pisces. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 63831 9.46 light-years
- WISEA J124135.42-245748.9 10.8 light-years
- HIP 63530 16.3 light-years
- HIP 62118 16.4 light-years
- Kraz 16.5 light-years
- HD 109988 18.1 light-years
- HIP 62925 18.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.