  We present a new sample of bright galaxy pairs extracted applying an
objective selection code to UZC catalog.The sample is volume limited to
M$_{zw}$ = -18.9 +5 log ${\it h}$ and contains 89 galaxy pairs.We analyze the
kinematical, morphological and photometrical properties of galaxies belonging
to this sample. We show that velocity separation, $| \Delta v_{r} |$, between
pair members is significantly lower in spiral type (S+S) pairs than in
early-type (E+E) and mixed (E+S) pairs.This indicates that truly isolated
galaxy pairs are more likely to be found among S+S pairs. We show that
ellipticals are rare and underluminous in B and that late spirals (T $\ge$ 4)
are overluminous. We confirm that the formation of bright ellipticals is a
phenomenon linked to group/cluster environment, while galaxy-galaxy interaction
may enhance blue luminosity of disk galaxies through SF phenomena. This last
statement is supported by the presence of strong FIR emission from early
spirals in this sample and by the high frequency of AGN/SB phenomenon, revealed
mainly in pairs of low relative radial velocity separation and showing signs of
interaction.
