Top panel: iMap reconstruction of spot A. Pixel size is 5° both in longitudinal and in latitudinal direction. The scaling of 27:1 from surface pixels to Megameters is based on a stellar radius of 0.98R_⊙. Middle panel: image of an isolated sunspot (adapted from Balthasar 2006). Bottom panel: temperature distribution of the sunspot (black line) in comparison to the mean temperature distribution of spot A of EK Dra (red histogram) and to the low-resolution (lr) result of spot A (grey) histogram). The bins belonging to the penumbra of EK Dra are indicated with light orange colour (shifted by +100 K for better visibility) while the extent of the sunspot penumbra can be directly compared with the middle panel.