Colour–magnitude diagram in J and H from IRSF/SIRIUS stars in a 2.25′ × 2.25′ field around MOA 2009–BLG-411. Superimposed lines are isochrones from Bonatto et al. (2004) for three ages: 0.6 Gyr (blue), 5 Gyr (red), and 10 Gyr (green), assuming solar metallicity, a distance modulus of 14.6, and extinction coefficients of AJ = 0.57, AH = 0.32 and AKs = 0.19. The black star symbol marks the position of the source.
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