KELT-4Ab is an extrasolar planet that orbits the star KELT-4A, in the star system KELT-4. The planet is approximately away in the constellation of Leo. The planet was discovered by the Kilodegree Extremely Little Telescope (KELT). Planet The exoplanet was discovered by transit and is a Hot Jupiter planet orbiting a star in a triple star system, KELT-4. It is the fourth planet found in such a system. As KELT-4A is the brightest host (V~10) of a Hot Jupiter in a hierarchical triple stellar system found so far researchers expect it may be useful in learning more about inflated planets. Star system KELT-4 is a triple star system. KELT-4BC is a binary star system subcomponent of the triple, away from KELT-4A and the projected separation between KELT-4B and KELT-4C is . See also Gliese 667 Cc, a planet in a triple star system KELT-2Ab, a previous planet discovered by the KELT survey, in a binary system KELT References External links KELT-North survey website Open Exoplanet Catalogue Entry Hot Jupiters Transiting exoplanets Exoplanets discovered in 2015 Exoplanets discovered by KELT Leo (constellation)