Star · G
GJ 9775
GJ 9775 is a main-sequence star of spectral type G in the constellation Aquarius, 280.3 light-years from the Sun.
| Other names | HIP 109801 |
|---|---|
| Constellation | Aquarius |
| Distance | 280.3 light-years (85.9 pc) |
| Apparent magnitude | magnitude 11.95 |
| Absolute magnitude | magnitude 7.28 |
| Spectral type | G |
| Surface temperature | 4,910 K |
| Luminosity | 0.15 L☉ |
| Radius | 0.535 R☉ |
| Mass | 0.623 M☉ (estimated) |
| Right ascension (J2000) | 22h 14m 24.1s |
| Declination (J2000) | −8° 44′ 37″ |
| Space velocity (relative to the Sun) | 237.4 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.95. Visible from the whole Southern Hemisphere and north to latitude 81° N. 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 1746. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.0 million years.
The Sun seen from there
From a planet around GJ 9775, the Sun would look like a star of magnitude 9.50, 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):
- HIP 110187 9.07 light-years
- HIP 108898 19.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.