SDSS 1212 (2008)
Like Magnetic Accretion, this is an illustration of a type of cataclysmic
binary called a polar. However, this is a polar with a difference, for there is a
sub-stellar object called a brown dwarf (left) in orbit around the magnetic white
dwarf (right). In all other known polars, it is a red dwarf rather than a brown dwarf
which is donating material to the white dwarf. This image was commissioned by
astronomers at the University of Leicester, UK.