Exoplanet · mini-Neptune
GJ 667 C b
GJ 667 C b is a mini-Neptune orbiting the star GJ 667 C. Its year lasts 7.2 Earth days. It was discovered in 2012 by the Radial Velocity method.
| Host star | GJ 667 C |
|---|---|
| Distance | 23.6 light-years (7.24 pc) |
| Orbital period | 7.2 days |
| Orbital radius | 0.0504 AU |
| Eccentricity | 0.200 |
| Radius | 2.25 R⊕ · 0.201 R♃ |
| Mass (minimum) | 5.68 M⊕ · 0.0179 M♃ |
| Density | 2.74 g/cm³ |
| Stellar flux received | 5.39 × Earth |
| Discovery method | Radial Velocity |
| Discovery year | 2012 |
| Discovered by | La Silla Observatory |
Habitable zone
Inside the inner edge of the habitable zone: it receives 5.39 times the light the Earth does, too hot to keep liquid water on its surface.
In the sky
A telescope is needed to see it: its apparent magnitude is 10.24. Visible from the whole Southern Hemisphere and north to latitude 55° N. South of latitude 55° 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 2002. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 419 thousand years.
Planets in the same system
- GJ 667 C c 28.1-day orbit · 1.77 R⊕
- GJ 667 C f 39-day orbit · 1.45 R⊕
- GJ 667 C e 62.2-day orbit · 1.45 R⊕
- GJ 667 C g 256-day orbit · 1.99 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.