Explore This SectionScienceExoplanetsKepler-51 bExoplanets HomeExoplanets OverviewExoplanets FactsTypes of ExoplanetsStarsWhat is the UniverseSearch for LifeThe Big QuestionsAre We Alone?Can We Find Life?The Habitable ZoneWhy We SearchTarget Star CatalogDiscoveriesDiscoveries DashboardHow We Find and CharacterizeMissionsPeopleExoplanet CatalogImmersiveThe ExoplaneteersExoplanet Travel Bureau5 Ways to Find a PlanetStrange New WorldsUniverse of MonstersGalaxy of HorrorsNewsStoriesBlogResourcesGet InvolvedGlossaryEyes on ExoplanetsExoplanet WatchMoreMultimediaExEP Kepler-51 bUnable to render the provided sourceKepler-51 b is a Neptune-like exoplanet that orbits an F-type star. Its mass is 2.1 Earths, it takes 45.2 days to complete one orbit of its star, and is 0.2514 AU from its star. Its discovery was announced in 2012. Keep Exploring Discover More Topics From NASA Search for Life Stars Universe Black Holes