  We report the discovery of a new eclipsing system less than one arcminute
south of the pulsating DB white dwarf KUV 05134+2605. The object could be
identified with the point source 2MASSJ0516288+260738 published by the Two
Micron All Sky Survey. We present and discuss the first light curves as well as
some additional colour and spectral information. The eclipse period of the
system is 1.29d, and, assuming this to be identical to the orbital period, the
best light curve solution yields a mass ratio of m2/m1=0.11, a radius ratio of
r2/r1~1 and an inclination of 74 deg. The spectral anaylsis results in a
Teff=4200K for the primary. On this basis, we suggest that the new system
probably consists of a late K + Brown dwarf (which would imply a system
considerably younger than ~0.01 Gyr to have r2/r1~1), and outline possible
future observations.
