 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 | |
| ~1.7[1] R🜨 | |
| Mass | >3.7[1] ME |
| Temperature | 277 K (4 °C; 39 °F)[1] |
Gliese 667 Cc (also known as GJ 667 Cc, HR 6426 Cc, or HD 156384 Cc)[2] 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. Gliese 667 Cc is sometimes considered as the first confirmed exoplanet with a high prospect for habitability.[3][4]
- ^ a b c Sloane, Stephen A.; Guinan, Edward F.; Engle, Scott G. (June 2023). "Super-Earth GJ 667Cc: Age and XUV Irradiances of the Temperate-zone Planet with Potential for Advanced Life". Research Notes of the AAS. 7 (6): 135. Bibcode:2023RNAAS...7..135S. doi:10.3847/2515-5172/ace189. ISSN 2515-5172.
- ^ "HD 156384 Cc". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2015-10-31.
- ^ "False Starts: Potentially Habitable Exoplanets - Planetary Habitability Laboratory @ UPR Arecibo". Archived from the original on 2021-10-18. Retrieved 2020-11-15.
- ^ "The Ugly Battle Over Who Really Discovered the First Earth-Like Planet". Wired. ISSN 1059-1028. Retrieved 2024-11-04.