Wolf 1061c
Wolf 1061 c is an exoplanet orbiting within the habitable zone of the red dwarf star Wolf 1061 in the constellation Ophiuchus, about 14.1 light-years from Earth. At the time of discovery, it was the closest known potentially habitable exoplanet to Earth, though several closer ones have since been found. It is the second planet in order from its host star in a triple planetary system, and has an orbital period of 17.9 days. Wolf 1061 c is classified as a super-Earth exoplanet as its mass is between that of Earth and the ice giants.
Artist's impression of the planetary system around Wolf 1061. | |
| Discovery | |
|---|---|
| Discovered by | University of New South Wales, Australia |
| Discovery site | European Southern Observatory |
| Discovery date | 17 December 2015 |
| Radial velocity | |
| Orbital characteristics | |
| 0.0890+0.0029 −0.0031 AU | |
| Eccentricity | 0.11+0.10 −0.07 |
| 17.8719±0.0059 d | |
| Semi-amplitude | 1.92±0.19 m/s |
| Star | Wolf 1061 |
| Physical characteristics | |
Mean radius | 1.66 R🜨 |
| Mass | ≥3.41+0.43 −0.41 M🜨 |
| Temperature | 223 K (−50 °C; −58 °F) |
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