  We consider spherically symmetric matter configurations on a four dimensional
"brane" embedded in a five dimensional $Z_2$-symmetric "bulk". We write the
junction conditions between the interior and exterior of these "stars", treat a
couple of static examples in order to point out the differences with ordinary
four dimensional Einstein gravity, consider briefly a collapse situation and
conclude with the importance of a global view including asymptotic and
regularity conditions in the bulk.
