The GJ 667 C system contains 5 exoplanets. It is located 23.63 light years away from the solar system.
| Mass | 0.33 solar masses |
| Radius | 0.32 solar radiae |
| Temperature | 3350 kelvin |
| Stellar Metallicity | -0.55 decimal exponent |
| Age | 2 billion years |
At more than 10 Earth masses, GJ 667 C b is an ice giant, a planet that is made up mostly of volatiles like water, amonia and methane, and enveloped by a dense hydrogen and helium atmosphere, much like Uranus and Neptune.
| Mass | 5.600 Earth masses |
| Density | 2.770 grams per cubic centimeter |
| Radius | 2.230 Earth radiae |
| Semi-major Axis | 0.0505 AU |
| Eccentricity | 0.13 |
| Orbital Period | 7.200 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | 3.6 m ESO Telescope |
| Discovery Instrument | HARPS Spectrograph |
| Discovery Date | 2013-01 |
| Reference | Bonfils et al. 2013 |
At 3.816 Earth masses, GJ 667 C c is a so called Super Earth. Super Earths could be terrestrial worlds like Earth, but they could also be ocean worlds or terrestrial worlds wrapped in a substantial atmosphere, in which case some refer to them as Mini Neptunes. GJ 667 C c orbits within the habitable zone of its parent star and could, potentially, be a habitable planet with stable bodies of liquid water on its surface, like Earth.
| Mass | 3.800 Earth masses |
| Density | 3.770 grams per cubic centimeter |
| Radius | 1.770 Earth radiae |
| Semi-major Axis | 0.125 AU |
| Eccentricity | 0.02 |
| Orbital Period | 28.140 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | 3.6 m ESO Telescope |
| Discovery Instrument | HARPS Spectrograph |
| Discovery Date | 2013-01 |
| Reference | Bonfils et al. 2013 |
At 2.544 Earth masses, GJ 667 C e is a so called Super Earth. Super Earths could be terrestrial worlds like Earth, but they could also be ocean worlds or terrestrial worlds wrapped in a substantial atmosphere, in which case some refer to them as Mini Neptunes. GJ 667 C e orbits within the habitable zone of its parent star and could, potentially, be a habitable planet with stable bodies of liquid water on its surface, like Earth.
| Mass | 2.700 Earth masses |
| Density | 4.870 grams per cubic centimeter |
| Radius | 1.450 Earth radiae |
| Semi-major Axis | 0.213 AU |
| Eccentricity | 0.02 |
| Orbital Period | 62.240 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | 3.6 m ESO Telescope |
| Discovery Instrument | HARPS Spectrograph |
| Discovery Date | 2013-08 |
| Reference | Anglada-Escude et al. 2013 |
At 2.544 Earth masses, GJ 667 C f is a so called Super Earth. Super Earths could be terrestrial worlds like Earth, but they could also be ocean worlds or terrestrial worlds wrapped in a substantial atmosphere, in which case some refer to them as Mini Neptunes. GJ 667 C f orbits within the habitable zone of its parent star and could, potentially, be a habitable planet with stable bodies of liquid water on its surface, like Earth.
| Mass | 2.700 Earth masses |
| Density | 4.870 grams per cubic centimeter |
| Radius | 1.450 Earth radiae |
| Semi-major Axis | 0.156 AU |
| Eccentricity | 0.03 |
| Orbital Period | 39.026 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | 3.6 m ESO Telescope |
| Discovery Instrument | HARPS Spectrograph |
| Discovery Date | 2013-08 |
| Reference | Anglada-Escude et al. 2013 |
With a mass below 5 Earth masses, and a semi-major axis of 0.549 astronomical units, which is outside the habitable zone of GJ 667 C, GJ 667 C g is likely an icy world.
| Mass | 4.600 Earth masses |
| Density | 3.210 grams per cubic centimeter |
| Radius | 1.990 Earth radiae |
| Semi-major Axis | 0.549 AU |
| Eccentricity | 0.08 |
| Orbital Period | 256.200 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | 3.6 m ESO Telescope |
| Discovery Instrument | HARPS Spectrograph |
| Discovery Date | 2013-08 |
| Reference | Anglada-Escude et al. 2013 |