Gliese 581 f is an unconfirmed planet. Its discovery was announced in 2010 by the Lick-Carnegie Exoplanet Survey. However an analysis by the European HARPS team concluded that the system is unlikely to contain a planet with the quoted characteristic. 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.