Transit of TOI-4562 b observed at the OPD/LNA on the night of UT 2023 Nov 9. Top panel: Raw data of TOI-4562 b and the standard star TYC 8914-2239-1 collected at the OPD/LNA. The y-axis is the instrumental magnitude with the data of TYC 8914-2239-1 displaced by +2.44 mag for visualisation purposes. Bottom panel: Normalised transit of TOI-4562 b (black data-points) and the modelled transit signal (green solid line). Midtransit occurred at T_mid(BJD) = 2, 460, 257.73350, resulting in an O − C of ∼2 hours in relation to the HEI23 ephemeris. The residuals after the fitting of the transit model are also shown. Fig. A.1 in the Appendix complements the fit for the OPD transit, showing the fits for the five TESS transits.