Star · M6
GJ 1142A
GJ 1142A is a main-sequence star of spectral type M6 in the constellation Leo, 81.2 light-years from the Sun.
| Constellation | Leo |
|---|---|
| Distance | 81.2 light-years (24.9 pc) |
| Apparent magnitude | magnitude 12.56 |
| Absolute magnitude | magnitude 10.58 |
| Spectral type | M6 |
| Surface temperature | 3,760 K |
| Luminosity | 0.0192 L☉ |
| Radius | 0.326 R☉ |
| Mass | 0.34 M☉ (estimated) |
| Right ascension (J2000) | 11h 08m 06.2s |
| Declination (J2000) | −5° 13′ 47″ |
| Space velocity (relative to the Sun) | 52.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.56. Visible from the whole Southern Hemisphere and north to latitude 85° N. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1945. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.4 million years.
The Sun seen from there
From a planet around GJ 1142A, the Sun would look like a star of magnitude 6.81, in the direction where our sky has the constellation Pisces. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 1142B 0.25 light-years
- HIP 54513 2.19 light-years
- HIP 54155 5.01 light-years
- GJ 3650 8.18 light-years
- 2MASS J11181292-0856106 8.26 light-years
- Gl 423.1 9.61 light-years
- Gl 429.2 11.7 light-years
- ULAS J105131.80+025751.0 13.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.