Fig. 2.

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Colour–magnitude diagram Ks vs. J − Ks. The colour code corresponds to stellar densities using a power stretch scale, where the number of stars per bin is indicated with the colour bar. The blue dashed lines show the division between foreground, NSD, and NSC stars. The numbers 1 and 2 indicate the red clump bumps with different extinction that belong to the NSD, and the NSC, respectively.
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