Spatial distributions of the 6.7 GHz methanol maser cloudlets in Сер A HW2 in epochs 8 and 9. The circle size is scaled as the logarithm of peak brightness; its colour corresponds to the local standard of rest velocity scale shown in the wedge. Roman units indicate the cloudlet numbering according to (Sugiyama et al. 2014) and (Sanna et al. 2017). The magenta star marks the Cep AHW2 position (Curiel etal. 2006): α(J2000) = 22^h56^m17.9816^s, δ(J2000) = 62°01′49.572″. The ellipse denotes the dust disc emission at 0.9 mm (Patel et al. 2005), and the arrows mark the elongated knot directions at the base of the jet detected at 7.5 mm (Carrasco-González et al. 2021).