Proper motion of J0541 (marked as a pink rhombus) compared to proper motions of YSOs in the nearby environment. Members of NGC 2024 are denoted in gray, while additional objects within 8′ of the center of NGC 2023 are denoted in blue. Only proper motions with S/N ≥ 3 are plotted. Left: the spatial distribution of sources is shown together with the direction of their proper motion. Velocities are shown in arbitrary units. Right: proper motion diagram. The black cross marks the mean proper motion of the cluster’s members. The black dashed line denotes the 1σ covariance ellipse. The proper motion error for J0541 is smaller than the symbol.