Star · M4V
2MASS J20484222-5127435
2MASS J20484222-5127435 is a main-sequence star of spectral type M4V in the constellation Indus, 137.0 light-years from the Sun.
| Constellation | Indus |
|---|---|
| Distance | 137.0 light-years (42.0 pc) |
| Apparent magnitude | magnitude 20.88 |
| Absolute magnitude | magnitude 17.76 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 1.23 × 10⁻⁴ L☉ |
| Radius | 0.0418 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 20h 48m 42.2s |
| Declination (J2000) | −51° 27′ 44″ |
| Space velocity (relative to the Sun) | 22.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 20.88. Visible from the whole Southern Hemisphere and north to latitude 39° N. South of latitude 39° S it never sets. It stands highest at midnight in August, 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 J20484222-5127435, the Sun would look like a star of magnitude 7.95, in the direction where our sky has the constellation Ursa Major. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 103260 5.46 light-years
- HIP 103620 6.17 light-years
- HIP 103855 6.27 light-years
- HIP 103583 9.98 light-years
- HIP 102753 11.9 light-years
- HIP 105506 12.7 light-years
- HIP 99344 14.8 light-years
- HIP 100405 14.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.