The planet HD 20782 b is orbiting the main sequence star HD 20782, a star in a binary system in which both stars host a planetary systems. This is the first such 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.