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Fig. 5

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Top: GP fit to the T8 APT photometric data set used to estimate the stellar rotation period of the star. The T8 APT data are shown in blue, while the model is shown in black. Our best-fit quasi-periodic GP fit reveals a rotational period of 37.5 ± 0.4 d with seasonal changes in the photometric amplitude and mean magnitude. Bottom: residuals of the best fit model.

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