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Table 1

Cluster information.

Cluster E(BV) (mM)V Age [Gyr]

NGC 6811a 0.05 10.3 1.0 ± 0.1
NGC 6819b 0.16 12.4 2.4 ± 0.3
M 67c 0.04 9.7 4.1 ± 0.5
NGC 188d 0.09 11.2 6.2 ± 0.3

Reference.

(b)

Rosvick & VandenBerg (1998).

(c)

Reddening from Taylor (2007), distance modulus and age from Yadav et al. (2008).

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