Star · M3V
2MASSW J1155395-372735
2MASSW J1155395-372735 is a main-sequence star of spectral type M3V in the constellation Centaurus, 38.5 light-years from the Sun.
| Constellation | Centaurus |
|---|---|
| Distance | 38.5 light-years (11.8 pc) |
| Apparent magnitude | magnitude 20.68 |
| Absolute magnitude | magnitude 20.32 |
| Spectral type | M3V |
| Surface temperature | 3,070 K |
| Luminosity | 9.09 × 10⁻⁶ L☉ |
| Radius | 0.0107 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 11h 55m 39.6s |
| Declination (J2000) | −37° 27′ 48″ |
| Space velocity (relative to the Sun) | 63.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 20.68. Visible from the whole Southern Hemisphere and north to latitude 53° N. South of latitude 53° 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 1988. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 683 thousand years.
The Sun seen from there
From a planet around 2MASSW J1155395-372735, the Sun would look like a star of magnitude 5.19, 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):
- Gl 431 5.06 light-years
- HIP 56998 6.12 light-years
- WISE J122152.28-313600.8 6.84 light-years
- 2MASS J11220826-3512363 7.04 light-years
- WISE J114156.71-332635.8 7.71 light-years
- WISE J124629.65-313934.2 7.97 light-years
- Gl 453 8.08 light-years
- Gl 432B 8.25 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.