| Discovery | |
|---|---|
| Discovered by | Mordasini et al. |
| Discovery site | La Silla Observatory |
| Discovery date | October 19, 2009 |
| Detection method | radial velocity (HARPS) |
| Orbital characteristics | |
| Semi-major axis | 0.235 AU (35,200,000 km) |
| Eccentricity | 0 (fixed) |
| Orbital period (sidereal) | 47.8 d 0.131 y |
| Star | HD 103197 |
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.
References
- Mordasini, C.; et al. (2011). "The HARPS search for southern extrasolar planets XXIV. Companions to HD 85390, HD 90156, and HD 103197: a Neptune analog and two intermediate-mass planets". Astronomy and Astrophysics. 526. A111. arXiv:1010.0856. Bibcode:2011A&A...526A.111M. doi:10.1051/0004-6361/200913521. S2CID 59062607.
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