Star · M0.5
GJ 685
GJ 685 is a main-sequence star of spectral type M0.5 in the constellation Draco, 46.7 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | Gl 685 · HIP 86087 |
|---|---|
| Constellation | Draco |
| Distance | 46.7 light-years (14.3 pc) |
| Apparent magnitude | magnitude 9.98 |
| Absolute magnitude | magnitude 9.20 |
| Spectral type | M0.5 |
| Surface temperature | 3,820 K |
| Luminosity | 0.0558 L☉ |
| Radius | 0.54 R☉ |
| Mass | 0.55 M☉ |
| Metallicity [Fe/H] | -0.15 |
| Right ascension (J2000) | 17h 35m 34.4s |
| Declination (J2000) | +61° 40′ 54″ |
| Space velocity (relative to the Sun) | 42.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.98. Visible from the whole Northern Hemisphere and south to latitude 28° S. North of latitude 28° N 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 1979. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 828 thousand years.
The Sun seen from there
From a planet around GJ 685, the Sun would look like a star of magnitude 5.61, in the direction where our sky has the constellation Dorado. It would be visible to the naked eye.
Planets
- GJ 685 b 24.2-day orbit · 2.95 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.