Star · M2
Gl 842
Gl 842 is a main-sequence star of spectral type M2 in the constellation Indus, 37.7 light-years from the Sun.
| Other names | HIP 108569 |
|---|---|
| Constellation | Indus |
| Distance | 37.7 light-years (11.6 pc) |
| Apparent magnitude | magnitude 9.74 |
| Absolute magnitude | magnitude 9.43 |
| Spectral type | M2 |
| Surface temperature | 3,830 K |
| Luminosity | 0.0512 L☉ |
| Radius | 0.515 R☉ |
| Mass | 0.476 M☉ (estimated) |
| Right ascension (J2000) | 21h 59m 34.9s |
| Declination (J2000) | −59° 45′ 10″ |
| Space velocity (relative to the Sun) | 50.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.74. Visible from the whole Southern Hemisphere and north to latitude 30° N. South of latitude 30° 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 1988. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 668 thousand years.
The Sun seen from there
From a planet around Gl 842, the Sun would look like a star of magnitude 5.14, in the direction where our sky has the constellation Ursa Major. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 1277 5.86 light-years
- GJ 9716 6.20 light-years
- HD 211970 6.66 light-years
- WISE J212100.87-623921.6 6.88 light-years
- WISEA J221216.27-693121.6 7.27 light-years
- Gl 865 7.32 light-years
- γ Pav 8.48 light-years
- Gl 853B 8.48 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.