The planet candidate HD 40307 g would be a sub-Neptune planet located in the habitable zone of the star. Follow-up analysis of the HARPS data for the system did not confirm this planet candidate. The spectral window function has peaks near this period, and there is also the possibility that it is an alias of the star's activity cycle. 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.