Star · M4V
CWISEP J124138.41-820051.9
CWISEP J124138.41-820051.9 is a main-sequence star of spectral type M4V in the constellation Chamaeleon, 47.3 light-years from the Sun.
| Constellation | Chamaeleon |
|---|---|
| Distance | 47.3 light-years (14.5 pc) |
| Apparent magnitude | magnitude 27.94 |
| Absolute magnitude | magnitude 27.13 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 2.20 × 10⁻⁸ L☉ |
| Radius | 5.59 × 10⁻⁴ R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 12h 41m 36.1s |
| Declination (J2000) | −82° 00′ 51″ |
| Space velocity (relative to the Sun) | 19.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 27.94. Visible from the whole Southern Hemisphere and north to latitude 8° N. South of latitude 8° S it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1979. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 839 thousand years.
The Sun seen from there
From a planet around CWISEP J124138.41-820051.9, the Sun would look like a star of magnitude 5.64, in the direction where our sky has the constellation Cepheus. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASS J13550323-8258375 2.65 light-years
- GJ 3625 4.26 light-years
- DENIS J1013-7842 5.74 light-years
- GJ 3740 8.55 light-years
- WISE J173551.72-820900.1 8.57 light-years
- GJ 4004 9.97 light-years
- Gl 391 10.8 light-years
- LHS 475 11.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.