  This poster is a summary of a paper on the subject (Bayer-Kim et al. 2002)
that has been submitted for publication in MNRAS. We present X-ray, H alpha,
radio, and optical data, both imaging and spectroscopy, of the cluster RX
J0820.9+0752 and its peculiar central cluster galaxy (CCG). We announce the
discovery of several isolated off-nuclear patches of blue light with strong
line-emssion (total L(H alpha) ~ 10^{42}{ergs}^{-1}) and distinct ionizational
and kinematic properties, embedded in a region of H alpha/X-ray emission. We
propose and investigate a scenario in which a secondary galaxy also featured in
our observations has moved through a cooling wake produced by the CCG, thereby
producing the observed clumpy morphology and helping to trigger star-formation
within the clumps.
