Radial profile of the cluster NGC 2244 in logarithmic scale. The profile (black filled circles) has been calculated by averaging the number of objects contained inside annuli defined around the NGC 2244 centre, where both the region occupied by members of NGC 2237, and the overdensity of young stars to the south-east of NGC 2244 have been masked. The blue diamonds at larger radii show the values without any masking. The dashed orange line shows the best fit EFF profile (Elson et al. 1987, see text for details). The last three points, where the profile starts to flatten out have not been included in the fit. The vertical dashed line represents the core radius derived from the profile fitting, and the dotted one marks the approximate outer radius of the cluster (r = 18′).