Star · K5
GJ 680
GJ 680 is a main-sequence star of spectral type K5 in the constellation Ara, 31.6 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | Gl 680 · HIP 86057 |
|---|---|
| Constellation | Ara |
| Distance | 31.6 light-years (9.68 pc) |
| Apparent magnitude | magnitude 10.13 |
| Absolute magnitude | magnitude 10.20 |
| Spectral type | K5 |
| Surface temperature | 3,560 K |
| Luminosity | 0.0306 L☉ |
| Radius | 0.459 R☉ |
| Mass | 0.456 M☉ |
| Right ascension (J2000) | 17h 35m 13.6s |
| Declination (J2000) | −48° 40′ 51″ |
| Space velocity (relative to the Sun) | 32.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.13. Visible from the whole Southern Hemisphere and north to latitude 41° N. South of latitude 41° S it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1994. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 560 thousand years.
The Sun seen from there
From a planet around GJ 680, the Sun would look like a star of magnitude 4.76, in the direction where our sky has the constellation Auriga. It would be visible to the naked eye.
Planets
- GJ 680 b 17,300-day orbit · 12 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Gl 666B 3.31 light-years
- Gl 666A 3.40 light-years
- CWISE J172617.09-484424.9 4.39 light-years
- WISEA J181849.59-470146.9 5.06 light-years
- 2MASS J18283572-4849046 7.63 light-years
- Gl 618A 9.82 light-years
- Gl 618B 9.84 light-years
- GJ 667 C 10.4 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.