We identified globular clusters and field stars of extragalactic origin and
investigated their chemical, physical, and kinematical properties. This objects
as supposed was captured by the Galaxy at different times from debris of the
dwarf satellite galaxies disrupted by its tidal forces. The results are
follows. (1) The majorities of metal-poor stellar objects in the Galaxy have an
extragalactic origin. (2) The masses of the accreted globular clusters decrease
with the removal from the center and the plane of the Galaxy. (3) The relative
abundances of chemical elements in the accreted and genetically connected stars
are essentially distinguished. (4) The accreted field stars demonstrate the
decrease of the relative magnesium abundanses with an increase in sizes and
inclinations of their orbits. (5) The stars of the Centaurus moving group were
born from the matter, in which star formation rate was considerably lower than
in the early Galaxy. On the base of these properties was made a conclusion that
with the decrease of the masses of the dwarf galaxies in them simultaneously
decrease the average masses of globular clusters and the maximum masses of
supernova SNe II. Namely latter fact leads to the decrease of the relative
abundances of \alpha-elements in their metal-poor stars