Star · K1V
GJ 1291A
GJ 1291A is a main-sequence star of spectral type K1V in the constellation Sculptor, 84.2 light-years from the Sun.
| Other names | HIP 117542 |
|---|---|
| Constellation | Sculptor |
| Distance | 84.2 light-years (25.8 pc) |
| Apparent magnitude | magnitude 7.88 |
| Absolute magnitude | magnitude 5.82 |
| Spectral type | K1V |
| Surface temperature | 5,170 K |
| Luminosity | 0.516 L☉ |
| Radius | 0.896 R☉ |
| Mass | 0.847 M☉ (estimated) |
| Right ascension (J2000) | 23h 50m 14.9s |
| Declination (J2000) | −29° 24′ 06″ |
| Space velocity (relative to the Sun) | 25.4 km/s |
In the sky
Too faint for the naked eye (magnitude 7.88); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 61° N. South of latitude 61° S it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1942. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.5 million years.
The Sun seen from there
From a planet around GJ 1291A, the Sun would look like a star of magnitude 6.89, 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):
- GJ 4362 2.87 light-years
- TOI-198 9.39 light-years
- 2MASS J23433470-3646021 11.1 light-years
- HIP 118261 11.2 light-years
- 2MASSI J0013578-223520 13.0 light-years
- Gl 911 13.2 light-years
- HIP 114455 14.2 light-years
- HIP 118278 14.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.