Star · G5V
GJ 9787
GJ 9787 is a main-sequence star of spectral type G5V in the constellation Piscis Austrinus, 109.4 light-years from the Sun.
| Other names | HIP 111349 |
|---|---|
| Constellation | Piscis Austrinus |
| Distance | 109.4 light-years (33.6 pc) |
| Apparent magnitude | magnitude 7.80 |
| Absolute magnitude | magnitude 5.17 |
| Spectral type | G5V |
| Surface temperature | 5,530 K |
| Luminosity | 0.837 L☉ |
| Radius | 0.996 R☉ |
| Mass | 0.956 M☉ (estimated) |
| Right ascension (J2000) | 22h 33m 30.7s |
| Declination (J2000) | −35° 26′ 41″ |
| Space velocity (relative to the Sun) | 76.0 km/s |
In the sky
Too faint for the naked eye (magnitude 7.80); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 55° N. South of latitude 55° 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 1917. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.9 million years.
The Sun seen from there
From a planet around GJ 9787, the Sun would look like a star of magnitude 7.46, in the direction where our sky has the constellation Leo Minor. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 110714 4.91 light-years
- HIP 110655 5.98 light-years
- HIP 110245 6.80 light-years
- HIP 109816 11.2 light-years
- HIP 112648 14.1 light-years
- HIP 111698 14.1 light-years
- HIP 108809 15.0 light-years
- PSO J341.4606-28.7798 15.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.