Star · G2V
GJ 9836B
GJ 9836B is a main-sequence star of spectral type G2V in the constellation Aquarius, 161.8 light-years from the Sun.
| Constellation | Aquarius |
|---|---|
| Distance | 161.8 light-years (49.6 pc) |
| Apparent magnitude | magnitude 11.00 |
| Absolute magnitude | magnitude 7.52 |
| Spectral type | G2V |
| Surface temperature | 5,780 K |
| Luminosity | 0.091 L☉ |
| Radius | 0.301 R☉ |
| Mass | 0.549 M☉ (estimated) |
| Right ascension (J2000) | 23h 42m 43.5s |
| Declination (J2000) | −14° 32′ 43″ |
| Space velocity (relative to the Sun) | 27.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.00. Visible from the whole Southern Hemisphere and north to latitude 75° N. South of latitude 75° 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 1864. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.9 million years.
The Sun seen from there
From a planet around GJ 9836B, the Sun would look like a star of magnitude 8.31, in the direction where our sky has the constellation Leo. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- ω² Aqr 5.75 light-years
- HIP 117002 7.29 light-years
- HIP 117980 9.43 light-years
- HIP 117911 9.94 light-years
- HIP 116352 10.9 light-years
- HIP 116519 15.3 light-years
- HIP 117905 15.5 light-years
- HIP 118247 15.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.