  We present results from Brueckner-Hartree-Fock calculations for
$\beta$-stable neutron star matter with nucleonic and hyperonic degrees of
freedom employing the most recent parametrizations of the baryon-baryon
interaction of the Nijmegen group. Only $\Sigma^-$ and $\Lambda$ are present up
to densities $\sim 7\rho_0$. The corresponding equations of state are then used
to compute properties of neutron stars such as masses and radii.
