Star · M4V
2MASS J04185879-4507413
2MASS J04185879-4507413 is a main-sequence star of spectral type M4V in the constellation Horologium, 137.0 light-years from the Sun.
| Constellation | Horologium |
|---|---|
| Distance | 137.0 light-years (42.0 pc) |
| Apparent magnitude | magnitude 21.66 |
| Absolute magnitude | magnitude 18.54 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 6.01 × 10⁻⁵ L☉ |
| Radius | 0.0292 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 4h 18m 58.8s |
| Declination (J2000) | −45° 07′ 42″ |
| Space velocity (relative to the Sun) | 12.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.66. Visible from the whole Southern Hemisphere and north to latitude 45° N. South of latitude 45° 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 1889. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.4 million years.
The Sun seen from there
From a planet around 2MASS J04185879-4507413, the Sun would look like a star of magnitude 7.95, in the direction where our sky has the constellation Hercules. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 21698 10.4 light-years
- 2MASS J04362054-4218523 10.9 light-years
- HIP 19976 11.7 light-years
- Gl 161.2 11.8 light-years
- HIP 22006 12.7 light-years
- HIP 21079 13.3 light-years
- HIP 18187 14.5 light-years
- HIP 20630 15.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.