Star · K7 V
GJ 9827
GJ 9827 is a main-sequence star of spectral type K7 V in the constellation Pisces, 96.7 light-years from the Sun. It is orbited by 3 confirmed exoplanet(s).
| Other names | HIP 115752 |
|---|---|
| Constellation | Pisces |
| Distance | 96.7 light-years (29.7 pc) |
| Apparent magnitude | magnitude 10.37 |
| Absolute magnitude | magnitude 8.01 |
| Spectral type | K7 V |
| Surface temperature | 4,240 K |
| Luminosity | 0.099 L☉ |
| Radius | 0.58 R☉ |
| Mass | 0.62 M☉ |
| Age | 5.5 billion years |
| Metallicity [Fe/H] | -0.29 |
| Right ascension (J2000) | 23h 27m 04.9s |
| Declination (J2000) | −1° 17′ 10″ |
| Space velocity (relative to the Sun) | 68.8 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.37. Visible from the whole Southern Hemisphere and north to latitude 89° N. 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 1929. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.7 million years.
The Sun seen from there
From a planet around GJ 9827, the Sun would look like a star of magnitude 7.19, in the direction where our sky has the constellation Leo. It would be invisible to the naked eye.
Planets
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Ebla 8.08 light-years
- HIP 115527 11.1 light-years
- CFBDS J232304.41-015232.3 11.4 light-years
- λ Psc 11.6 light-years
- HIP 113896 11.9 light-years
- 16 Psc 12.0 light-years
- GJ 9829 13.3 light-years
- HIP 114834 13.3 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.