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HAT-P-13c
HAT-P-13c is a substellar object orbiting the star HAT-P-13 located 698 light years away from Earth in the constellation of Ursa Major. A search for transits was negative, however only 72% of the possible transit configurations could be ruled out.〔 With a mass at least 15.2 times that of Jupiter, it may be a massive planet or a small brown dwarf.〔 The gravitational effect of this object on the inner transiting planet HAT-P-13b may allow a precise determination of the inner planet's internal structure.〔ATYGIN K., BODENHEIMER P. & LAUGHLIN G. , 2009 "Determination of the Interior Structure of Transiting Planets in Multiple-Planet Systems" ApJ. Letters 2009 (preprint )〕 ==References==
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