Fig. 2.
Top panel: long-term photometric variations based on scanned photographic plates of EPIC 211759736 from the DASCH database. Data are fitted with the possible decades-long cyclic changes of the star. Bottom panel: for comparison, DASCH magnitudes of the nearby δ Sct-type star GP Cnc, which is not expected to change its mean brightness. The two light curves are plotted to the same magnitude scale.
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