Search for variables in the Tycho Epoch Photometry Annex B

In order to automatically identify intrinsic variable stars in the Tycho Epoch Photometry Annex B (TEP/B) we have tried various methods. The simplest one was to look for stars with high standard deviations or scatter in their V_T magnitudes. As an alternative approach, we have used different statistical moments like skewness and kurtosis to derive reasonable estimates on non-Gaussian variability in the Tycho light-curves. We also applied an epoch folding method to emphasize any occuring periodic structure.