Table 5: Values for the reddening as determined in the present paper; the three E(B-V) values for each cluster derived from individual colours, i.e. from (B-V), (b-y), and (V-K) respectively, are also given. The last line gives the adopted reddening.
  NGC 2506 NGC 6134  IC 4651
${\rm [Fe/H]}$ -0.20 +0.15 +0.11
$T_{\rm eff}$(ref.) 5000 K 5000 K 4500 K
E(B-V)BV $0.058\pm0.016$ $0.355\pm0.005$ $0.087\pm0.022$
$E(B-V)_{\rm by}$   $0.340\pm0.006 $ $0.082\pm0.015$
E(B-V)VK $0.076\pm0.007$ $0.388\pm0.005$ 0.080
E(B-V) adop. $0.073\pm0.009$ $0.363\pm0.014$ $0.083\pm0.011$


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