HD 137388 b was found with the European High Accuracy Radial velocity Planet Searcher (HARPS) which can reach sub-meter-per-second precision. The planet orbits a K type star. HD 137388 appears in the literature as a binary system. However, according to Roell et al. (2012) the A and B components of HD 137388 have very different proper motions and are unlikely to be a physical binary system. Link to scientific paper Your name Note: Your commit will be vetted before it is merged into the public version. It is crucial that you include a link to a scientific publication. For more information on the meaning of the different datafields see the readme file in the Open Exoplanet Catalogue repository on github.