The planet HD 142 A b is orbiting a G type star which is part of a binary. A second planet in the system has been discovered. After the discovery of the second planet, the reported eccentricity of the first planet changed significantly. This system is an example of how multiple-planet systems can masquerade as moderately eccentric single-planet systems. 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.