Fig. A.1.
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Optical images of the sky regions centred on the star clusters analysed in the present work: (a) Kronberger 99, (b) Kronberger 100, (c) Kronberger 119, (d) Kronberger 143, (e) Patchick 122, (f) Patchick 125, (g) Patchick 126, (h) ESO 92-18, (i) Ferrero 54, (l) FSR 190, (m) Gaia 2, and (n) Riddle 15. DECaPS colours were used for most of the targets, except for Riddle 15 and FSR 190 for which PanSTARRS colours were used. A coverage of 5.50′×6.25′ was used for the most of the clusters, except for FSR 190 (11.5′×13′).
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