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Ultra hot Jupiters are unique planetary objects that have a dayside temperature exceeding 2200K due to intense irradiation from the host star. An important aspect hereby is the spectral type of the host star comma which determines the wavelength range at which most of the stellar radiation is emitted. This in turn impacts the efficiency of the planetary atmosphere to absorb the incoming stellar flux. As most of the observed ultra hot Jupiters orbit F-G stars comma the parameter space of planets around A-type stars has not been explored sufficiently to be able to empirically verify this theoretical prediction. We propose to observe two recently discovered ultra hot Jupiters that orbit A-type stars to study how hot stars can affect the thermal structure and atmospheric composition of the planet.