This planet candidate was discovered with the Kepler spacecraft. Its host star gets periodically fainter whenever the planet is in front of the star. Because there are multiple phenomena that can create a signal that looks similar to a planetary transit, the candidates have to be confirmed with another method. For Kepler-28 the planetary nature of the companions has been confirmed by transit timing variations, caused by other planets in the system, and a stability analysis. However, the mass of the planets is not well constrained yet. 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.