Star · M2V
2MASS J03400942-6724051
2MASS J03400942-6724051 is a main-sequence star of spectral type M2V in the constellation Hydrus, 30.5 light-years from the Sun.
| Constellation | Hydrus |
|---|---|
| Distance | 30.5 light-years (9.36 pc) |
| Apparent magnitude | magnitude 21.90 |
| Absolute magnitude | magnitude 22.04 |
| Spectral type | M2V |
| Surface temperature | 3,330 K |
| Luminosity | 1.03 × 10⁻⁶ L☉ |
| Radius | 0.00306 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 3h 40m 08.4s |
| Declination (J2000) | −67° 23′ 56″ |
| Space velocity (relative to the Sun) | 26.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.90. Visible from the whole Southern Hemisphere and north to latitude 23° N. South of latitude 23° S it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1995. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 541 thousand years.
The Sun seen from there
From a planet around 2MASS J03400942-6724051, the Sun would look like a star of magnitude 4.69, in the direction where our sky has the constellation Ursa Minor. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 127.1B 3.79 light-years
- Gl 127.1A 3.79 light-years
- 2MASS J03480772-6022270 4.89 light-years
- GJ 3112 6.17 light-years
- WISEPC J014807.25-720258.7 7.91 light-years
- Gl 54 7.95 light-years
- HIP 31293 8.18 light-years
- HIP 31292 8.18 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.