Fig. 1
Spot occupancy on the artificial star, in flattened polar view, from observations of HR 1099 secured in 1998 January. Concentric circles represent, starting from the centre, parallels of latitude +60, +30, 0, and −30°. Radial ticks around the star illustrate the rotational phases, with steps of 0.05 rotation cycle, following Donati et al. (2003b).
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