Star · G2IV
GJ 9691
GJ 9691 is a subgiant star of spectral type G2IV in the constellation Telescopium, 101.8 light-years from the Sun.
| Other names | HIP 100412 |
|---|---|
| Constellation | Telescopium |
| Distance | 101.8 light-years (31.2 pc) |
| Apparent magnitude | magnitude 6.26 |
| Absolute magnitude | magnitude 3.79 |
| Spectral type | G2IV |
| Surface temperature | 6,170 K |
| Luminosity | 2.68 L☉ |
| Radius | 1.43 R☉ |
| Mass | 1.28 M☉ (estimated) |
| Right ascension (J2000) | 20h 21m 41.0s |
| Declination (J2000) | −49° 59′ 58″ |
| Space velocity (relative to the Sun) | 67.1 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.26). Visible from the whole Southern Hemisphere and north to latitude 40° N. South of latitude 40° S it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1924. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.8 million years.
The Sun seen from there
From a planet around GJ 9691, the Sun would look like a star of magnitude 7.30, in the direction where our sky has the constellation Lynx. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 100184 4.54 light-years
- HIP 101317 5.13 light-years
- α Ind 7.13 light-years
- GJ 4145 8.88 light-years
- HIP 98105 9.05 light-years
- HIP 101905 9.44 light-years
- HIP 101846 10.5 light-years
- HIP 97156 11.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.