K2-18b
 Artist's impression of K2-18b (right) orbiting red dwarf K2-18 (left). The exoplanet K2-18c is shown between them. | |
| Discovery[1] | |
|---|---|
| Discovery site | Kepler space telescope |
| Discovery date | 2015 |
| Transit | |
| Orbital characteristics[2] | |
| 0.1429+0.0060 −0.0065 au 21,380,000 km | |
| Eccentricity | 0.20±0.08 |
| 32.939623+0.000095 −0.000100 d | |
| Inclination | 89.5785°+0.0079° −0.0088° |
| −0.10+0.81 −0.59 rad (−5.73+46.4 −33.8 °) | |
| Semi-amplitude | 3.55+0.57 −0.58 m/s |
| Star | K2-18 |
| Physical characteristics | |
Mean radius | 2.610±0.087 R
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