Our star sample without constraints on the aperture mask size (7385 sources, gray histogram) and after imposing a minimum size of 9 pixels (2162 sources, blue histogram). Other constraints described in Sect. 3.1 apply to both histograms. Left: sample distribution of the median aperture mask sizes, calculated per star over all TESS sectors. Middle: sample distribution of the TESS magnitudes. The dashed red line marks a magnitude value of 13.5. Right: median contamination level caused by neighboring stars, calculated per star over all TESS sectors. The dashed orange line marks a contamination of 5%.