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CoRoT and Kepler high-precision photometric data allowed the detection andcharacterization of the oscillation parameters in stars other than the Sun.Moreover, thanks to the scaling relations, it is possible to estimate massesand radii for thousands of solar-type oscillating stars. Recently, a \Delta\nu- \rho relation has been found for \delta Scuti stars. Now, analyzing severalhundreds of this kind of stars observed with CoRoT and Kepler, we present anempiric relation between their frequency at maximum power of their oscillationspectra and their effective temperature. Such a relation can be explained withthe help of the \kappa-mechanism and the observed dispersion of the residualsis compatible with they being caused by the gravity-darkening effect.

The envelope of the power spectra of over a thousand \delta Scuti stars. The $\bar{T}_{eff}$-$\nu_{max}$ scaling relation