Long-term photometric evolution of AT 2023txn reconstructed by combining ZTF g r, ANS g r B and Gaia G, B_P, and R_P photometry (in magnitudes). Top two panels plot the IR photometry collected at six-month cadence by the NeoWISE satellite in W1 (3.4 μm) and W2 (4.6 μm) bands. The epochs of the minima are marked on the g-band panel follow Eq. (1). The minimum marked by the orange arrow is discussed in Sect. 3.4.