ϑ² distribution of the combined 128.6 h MAGIC observations between 2005 and 2007. ϑ² is the squared angular distance between the source position and the reconstructed arrival direction of each event. The grey shaded area below the red crosses is the OFF data-sample, while the black crosses correspond to the ON data. The excess is point-like compared to the PSF with a significance of 7 standard deviations (calculated with formula 17 of Li & Ma 1983).