Single Stars
 
 
A polar cataclysmic binary/variable with a brown dwarf orbiting a white dwarf See also
A magnetic cataclysmic binary/variable of  the AM Her (or polar) type
A brown dwarf seen from an orbiting planet.
A brown dwarf orbiting a yellow star.
Brown dwarf orbiting a red dwarf
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.