  The development of surveys which will be able to cover a large region of the
sky several times per year will allow the massive detection of transient events
taking place in timescales of years. In addition, the projected full
digitalization of the Harvard plate collection will open a new window to
identify slow transients taking place in timescales of centuries. In
particular, these projects will allow the detection of stars undergoing slow
eruptions as those expected during late helium flashes in the post-AGB
evolution. In order to identify those transients which correspond with late
helium flashes the development of synthetic light curves of those events is
mandatory. In this connection we present preliminary results of a project aimed
at computing grids of theoretical light curves of born again stars.
