Proper motions of 135 stars (crosses) and 26 brown dwarfs (filled lozenges) in the 6.5 pc sample as a function of Galactic longitude. The dashed line marks the dividing line between the two hemispheres front and back of the Sun relative to the direction of Galactic rotation. The brown dwarf distribution in the left part differs from that in the right part, with a deficit at low (≲1 arcsec/yr) and high (≳2 arcsec/yr) proper motions indicated by dotted lines. Open squares indicate objects within 30 deg of the solar apex and antapex, respectively.