Ring galaxies are commonly known as objects where a burst of star form
ation was triggered by a close encounter with an intruder maybe a sate
llite galaxy. BVRI CCD observations of five ring galaxies have been pe
rformed. Here we present the results of a self-consistent approach to
reproduce their observed morphology and spectral energy distribution u
sing updated N-body simulations and evolutionary population synthesis
models extending from UV to far-IR wavelengths. Some suggestions about
the evolutionary properties of these starburst galaxies are then deri
ved. (C) 1995 American Astronomical Society.