Galactic position in (X, Y) (upper panel) and (X, Z) (middle panel) and (Y, Z) (bottom panel) for the high-quality OC sample closer than 500 pc. The size and angle of the arrows are proportional to (V_R, V_ϕ − V_c),(V_R, V_Z), and (V_ϕ − V_c, V_Z). The horizontal and vertical lines indicate the position of the Sun. Several objects discussed in the text are represented by different symbols and colours. The red diamond represents Ruprecht 147, the green squares show Mamajek 4, NGC 2632, and Stock 2 (Group 1 in Table 2), the magenta stars show Turner 5, NGC 7092, ASCC 41, NGC 1662, Ruprecht 98, and Stock 10 (Group 2 in Table 2), and the blue circles indicate RSG 7 and RSG 8.