  It is well known that asteroseismology is the unique technique permitting the
study of the internal structure of pulsating stars using their pulsational
frequencies, which is per se very important. It acquires an additional value
when the star turns out to be a planet host. In this case, the asteroseismic
study output may be a very important input for the study of the planetary
system. With this in mind, we use the large time-span of the Kepler public data
obtained for the star system HAT-P-7, first to perform an asteroseismic study
of the pulsating star using Time-Dependent-Convection (TDC) models. Secondly,
we make a revision of the planet properties in the light of the asteroseismic
study.
