Fig. 3
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Movement of TOI-2431 as a function of time. Left: POSS-I image of TOI-2431 (middle star) taken in 1954. Right: ZTF image of TOI-2431 taken in 2018. The red circle highlights the position of TOI-2431 as measured by Gaia at the Gaia J2016 epoch. Due to its high proper motion, TOI-2431 has moved substantially between the two images, highlighting that there is no background star seen in the vicinity of TOI-2431 that could confound the planet interpretation of TOI-2431 b.
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