Spatial distribution of candidate red luminous stars, passing all the photometric criteria listed in Sect. 2 in the immediate vicinity of Ste 2. Blue circles represent stars with i < 15.1, while red squares represent candidates with i > 15.1 or not detected in i (and so too faint to be observed with AF2). Filled circles mark stars actually observed. Members of Ste 2 from D07 are marked by crosses (note that a few of them have not been selected by our criteria).