| HD 103197 b | |
| Discoverer: | Mordasini et al. |
| Discovery Site: | La Silla Observatory |
| Discovered: | October 19, 2009 |
| Discovery Method: | radial velocity (HARPS) |
| Apsis: | astron |
| Semimajor: | 0.235AU |
| Eccentricity: | 0 (fixed) |
| Period: | 47.8 d 0.131 y |
HD 103197 b (also known as HIP 57931 b) is an extrasolar planet which orbits the K-type main sequence star HD 103197, located approximately 170 light years away. It is outside of the habitable zone, and as such is unlikely to have liquid water on its moons, if there are any.