Table 1: Magnitudes and colors of our target stars in the northern red arc of M 33.
Star J H $K_{\rm s}$ $J-K_{\rm s}$ J-H $H-K_{\rm s}$ $M_{K_{ \rm s}}$
1 17.96 16.76 15.91 2.05 1.20 0.85 -8.74
2 18.49 17.09 16.32 2.16 1.40 0.77 -8.33
3 19.61 18.04 16.66 2.96 1.57 1.39 -7.99
4 18.57 17.26 16.49 2.08 1.31 0.77 -8.16
5 18.82 17.35 16.54 2.28 1.47 0.81 -8.11
6 18.42 17.24 16.46 1.97 1.18 0.78 -8.19
7 18.37 16.91 15.82 2.55 1.46 1.10 -8.83


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