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Fig. 6

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Modified Hertzprung-Russell diagram comparing the stellar density and temperature of WASP-23 to theoretical stellar evolutionary tracks interpolated for a metallicity of [M/H] =  −0.05. The star sits just above the 10 Gyr tracks (dashdotted line). Other tracks are 0.1 Gyr (solid), 1 Gyr (dotted), and 5 Gyr (dashed). Models are those of Girardi et al. (2000).

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