Star · K0
GJ 9572
GJ 9572 is a main-sequence star of spectral type K0 in the constellation Hercules, 117.8 light-years from the Sun.
| Other names | HIP 81598 |
|---|---|
| Constellation | Hercules |
| Distance | 117.8 light-years (36.1 pc) |
| Apparent magnitude | magnitude 8.62 |
| Absolute magnitude | magnitude 5.83 |
| Spectral type | K0 |
| Surface temperature | 5,060 K |
| Luminosity | 0.533 L☉ |
| Radius | 0.949 R☉ |
| Mass | 0.854 M☉ (estimated) |
| Right ascension (J2000) | 16h 39m 50.0s |
| Declination (J2000) | +5° 30′ 26″ |
| Space velocity (relative to the Sun) | 75.3 km/s |
In the sky
Too faint for the naked eye (magnitude 8.62); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 84° 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 1908. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.1 million years.
The Sun seen from there
From a planet around GJ 9572, the Sun would look like a star of magnitude 7.62, 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):
- GJ 3962 7.73 light-years
- 2MASS J16304139+0938446 11.0 light-years
- HIP 81730 13.1 light-years
- PSO J244.6801+08.7185 15.8 light-years
- SDSSp J163600.79-003452.6 16.2 light-years
- HIP 81421 17.4 light-years
- Gl 611.3 17.9 light-years
- PSO J242.9129+02.4856 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.