  Even though only a handful of sub-stellar companions have been found via
direct imaging, each of these discoveries has had a tremendous impact on our
understanding of the star formation process and the physics of cool
atmospheres. Young stars are prime targets for direct imaging searches for
planets and brown dwarfs, due to the favorable brightness contrast expected at
such ages and also because it is often possible to derive relatively good age
estimates for these primaries. Here we present the direct imaging discovery of
HD 284149 b, a 18-50 M_Jup companion at a projected separation of 400 AU from a
young (25 Myr) F8 star, with which it shares common proper motion
