From 1979 to 2001 , the magnetic axis of the white dwarf in the polar DP Leo slowly rotated by 50 ^ { \circ } in azimuth , possibly indicating a small asynchronism between the rotational and orbital periods of the magnetic white dwarf .
Using the MONET/North telescope , we have obtained phase-resolved orbital light curves between 2009 and 2013 , which show that this trend has not continued in recent years .
Our data are consistent with the theoretically predicted oscillation of the magnetic axis of the white dwarf about an equilibrium orientation , which is defined by the competition between the accretion torque and the magnetostatic interaction of the primary and secondary star .
Our data indicate an oscillation period of \sim 60 yr , an amplitude of about 25° , and an equilibrium orientation leading the connecting line of the two stars by about 7° .