Continuous wavelet analysis of the AAVSO B band photometry. The top panel shows the CWT. The inset on the left displays the LSP of the whole dataset, together with a temporal average of the CWT. The orange horizontal dot-dashed lines mark the periods obtained from the LSP analysis, i.e., P_B2 = 6.24 days and P_B3 = 8.84 day, while the red one indicates the 2021 TESS period, P_TESS = 4.79 days. The bottom panel displays the AAVSO B band light curve and its linear interpolation. The insets show the LSP for three different time segments. We excluded the shaded areas from the calculation of the LSPs to highlight the different timescales detected.