Star · M2V
2MASS J11544223-3400390
2MASS J11544223-3400390 is a main-sequence star of spectral type M2V in the constellation Hydra, 123.1 light-years from the Sun.
| Constellation | Hydra |
|---|---|
| Distance | 123.1 light-years (37.8 pc) |
| Apparent magnitude | magnitude 21.38 |
| Absolute magnitude | magnitude 18.50 |
| Spectral type | M2V |
| Surface temperature | 3,210 K |
| Luminosity | 3.51 × 10⁻⁵ L☉ |
| Radius | 0.0192 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 11h 54m 42.0s |
| Declination (J2000) | −34° 00′ 39″ |
| Space velocity (relative to the Sun) | 30.2 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.38. Visible from the whole Southern Hemisphere and north to latitude 56° N. South of latitude 56° 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 1903. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.2 million years.
The Sun seen from there
From a planet around 2MASS J11544223-3400390, the Sun would look like a star of magnitude 7.71, in the direction where our sky has the constellation Andromeda. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 58241 8.38 light-years
- HIP 58240 8.47 light-years
- WISE J113949.24-332425.1 8.74 light-years
- 2MASS J12070374-3151298 8.96 light-years
- HIP 56326 11.2 light-years
- 2MASS J12073804-3909050 12.8 light-years
- HIP 58950 12.9 light-years
- ξ Hya 13.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.