Star · M4V
2MASS J05185995-2828372
2MASS J05185995-2828372 is a main-sequence star of spectral type M4V in the constellation Columba, 74.7 light-years from the Sun.
| Constellation | Columba |
|---|---|
| Distance | 74.7 light-years (22.9 pc) |
| Apparent magnitude | magnitude 21.48 |
| Absolute magnitude | magnitude 19.68 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.11 × 10⁻⁵ L☉ |
| Radius | 0.0173 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 5h 18m 60.0s |
| Declination (J2000) | −28° 28′ 37″ |
| Space velocity (relative to the Sun) | 30.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 21.48. Visible from the whole Southern Hemisphere and north to latitude 62° N. South of latitude 62° S it never sets. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1951. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.3 million years.
The Sun seen from there
From a planet around 2MASS J05185995-2828372, the Sun would look like a star of magnitude 6.63, 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):
- GJ 3341 4.35 light-years
- WISE J051208.66-300404.4 5.90 light-years
- 2MASSI J0512063-294954 9.15 light-years
- Gl 186 9.29 light-years
- WISEPA J052844.51-330823.9 10.3 light-years
- 2MASSI J0451009-340214 11.0 light-years
- Gl 199A 11.9 light-years
- Gl 199B 11.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.