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Table 2

Parameters to derive the new color indices.

NGC 2419 4147 5024 5053 5272 5466 5904 6205 6341

tan(α) 1.472 1.462 1.495 1.434 1.473 1.531 1.447 1.381 1.345
b  −0.039 0.004  −0.053  −0.006  −0.053  −0.047  −0.016  −0.010  −0.001

NGC/Name 7006 7078 7089 Pal 1 Pal 3 Pal 4 Pal 5 Pal 14

tan(α) 1.540 1.522 1.473 1.545 1.404 1.534 1.553 1.767
b  −0.028  −0.035  −0.054 0.007 0.017  −0.147  −0.034  −0.190

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