Gliese 667 Cc
Gliese 667 Cc (also known as GJ 667 Cc, HR 6426 Cc, or HD 156384 Cc) is an exoplanet orbiting within the habitable zone of the red dwarf star Gliese 667 C, which is a member of the Gliese 667 triple star system, approximately 23.62 light-years (7.24 parsecs; 223.5 trillion kilometres) away in the constellation of Scorpius. The exoplanet was found by using the radial velocity method, from radial-velocity measurements via observation of Doppler shifts in the spectrum of the planet's parent star.
An artist's impression of Gliese 667 Cc | |
| Discovery | |
|---|---|
| Discovery date | 2011 (mentioned), 2012 (announced) |
| Radial velocity (European Southern Observatory) | |
| Orbital characteristics | |
| 0.1251 (± 0.03) AU | |
| Eccentricity | 0.133 (± 0.098) |
| 28.155 (± 0.017) d | |
| Inclination | >30 |
| Semi-amplitude | 1.5 |
| Star | Gliese 667C |
| Physical characteristics | |
Mean radius | 1.54+0.5 −0.4 R🜨 |
| Mass | 3.709 (± 0.682) ME |
| Temperature | 277.4 K (4.3 °C; 39.6 °F) |
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