Exoplanet · mini-Neptune
GJ 682 c
GJ 682 c is a mini-Neptune orbiting the star GJ 682. Its year lasts 57.3 Earth days. It was discovered in 2014 by the Radial Velocity method.
| Host star | GJ 682 |
|---|---|
| Distance | 16.3 light-years (5.01 pc) |
| Orbital period | 57.3 days |
| Orbital radius | 0.176 AU |
| Eccentricity | 0.100 |
| Radius | 2.89 R⊕ · 0.258 R♃ |
| Mass (minimum) | 8.7 M⊕ · 0.0274 M♃ |
| Density | 1.98 g/cm³ |
| Equilibrium temperature | 190 K (-83 °C) |
| Stellar flux received | 0.0646 × Earth |
| Discovery method | Radial Velocity |
| Discovery year | 2014 |
| Discovered by | Multiple Observatories |
Habitable zone
Beyond the habitable zone: it receives only %6.5 of the light the Earth does, a frozen world.
Its star in the sky
In the planet's sky its star is a disc 0.9° across: 1.7 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 10.94. Visible from the whole Southern Hemisphere and north to latitude 46° N. South of latitude 46° S it never sets. It stands highest at midnight in June, the best time to observe it.
Light's journey
The light you see tonight set out around the year 2010. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 290 thousand years.
Planets in the same system
- GJ 682 b 17.5-day orbit · 1.93 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.