Star · K0
GJ 9566
GJ 9566 is a main-sequence star of spectral type K0 in the constellation Ophiuchus, 147.6 light-years from the Sun.
| Other names | HIP 81023 |
|---|---|
| Constellation | Ophiuchus |
| Distance | 147.6 light-years (45.3 pc) |
| Apparent magnitude | magnitude 8.82 |
| Absolute magnitude | magnitude 5.54 |
| Spectral type | K0 |
| Surface temperature | 5,080 K |
| Luminosity | 0.689 L☉ |
| Radius | 1.07 R☉ |
| Mass | 0.911 M☉ (estimated) |
| Right ascension (J2000) | 16h 32m 51.6s |
| Declination (J2000) | +3° 14′ 46″ |
| Space velocity (relative to the Sun) | 103.0 km/s |
In the sky
Too faint for the naked eye (magnitude 8.82); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 87° S. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1878. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.6 million years.
The Sun seen from there
From a planet around GJ 9566, the Sun would look like a star of magnitude 8.11, in the direction where our sky has the constellation Eridanus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 80837 8.94 light-years
- HIP 81988 11.3 light-years
- HIP 81991 11.4 light-years
- Marfik 13.3 light-years
- HIP 80700 14.0 light-years
- HIP 79730 16.5 light-years
- HIP 80522 18.1 light-years
- SDSS J160510.15+042152.1 18.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.