Abstract
We have started an observing program to study the whole sample of interaction systems from the Second Byurakan Survey (SBS) (around 20 sky fields) using a CCD camera and the B, R, and H α filters. The objectives of this project are: (1) to link the histories of the star formation and nuclear activity in these systems with the morphologic type of the interacting galaxies; (2) to settle upper limits to the age of the induced starbursts using the H α images, which relates with the dynamical time of the interaction; (3) to infer the masses of the stars which are crucial for understanding the physical properties of the perturbed interstellar medium.