Fig. 2
TESS image of LTT 3780 in Sector 9 (created with tpfplotter2, Aller et al. 2020). The electron counts are colour-coded. The red bordered pixels are used in SAP. The size of the red circles indicates the TESS magnitudes of all nearby stars and LTT 3780 (label #1 with the “×”). Positions are corrected for proper motions between Gaia DR2 epoch (2015.5) and TESS Sector 9 epoch (2019.2). The TESS pixel scale is 21′′ approximately.
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