The position of evolved stars belonging to Sextans A in the colour magnitude (K − [4.5], [4.5]) (left-hand) and (J − K, K) (right-hand) planes. The meaning of the various symbols indicate our classification, according to the following coding: red circles: carbon stars; blue squares: intermediate mass stars, undergoing HBB; green triangles: HBB stars or RSG stars; orange pentagons: RSG stars; black diamonds: low-intermediate mass, scarcely obscured stars or core helium burning stars. Full (open) points indicate carbon (oxygen-rich) stars, according to the classification by Jones et al. (2018). The cyan, magenta, and yellow regions indicate the zones in the observational planes where carbon stars, intermediate mass stars, and RSG stars evolve. The numbers indicate the ID classification in the Jones et al. (2018) catalogue of some sources of particular interest. The sources in the left-hand panel on the right of the vertical, dashed line are C-stars with a very large degree of obscuration, with τ₁₀ ≥ 0.1.