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The 23 Myr system V1298 Tau hosts four transiting planets and is a valuablelaboratory for exploring the early stages of planet evolution soon afterformation of the star. We observe the innermost planet, V1298 Tau c, duringtransit using LBT PEPSI to obtain high spectral resolution characterization ofescaping material near the H-alpha line. We find no strong evidence foratmospheric material escaping at the orbital velocity of the planet. Instead,we find a deep stellar feature that is variable on the few percent level,similar to a previous observation of the planet and can be explained by stellaractivity. We attempted to monitor the broadband optical transit with LBT MODSbut do not achieve the precision needed to characterize the atmosphere orimprove the ephemeris.

H-Alpha Variability of V1298 Tau c