Fig. 6.
Sky distribution (top left panel), colour-magnitude diagram (top right panel), and parallax as a function of magnitude (bottom panel) for the members of NGC 2509. The median parallax is 0.36 mas. Available literature distances for this cluster are 912 pc (DAML, blue), 1700 pc (MWSC, green) and 2900 pc (Carraro & Costa 2007, red), which correspond to parallaxes of 1.09 mas, 0.59 mas, and 0.35 mas (respectively).
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