  We calculate magnetic transition moments in the chiral quark-soliton model,
with explicit SU(3)-symmetry breaking taken into account. The dynamical model
parameters are fixed by experimental data for the magnetic moments of the
baryon octet and from the recent measurements of $\Theta^{+}$ mass. Known
magnetic transition moments $\mu_{\Lambda\Sigma}$, $\mu_{N\Delta}$ are
reproduced and predictions for other octet-decuplet and octet-antidecuplet
transitions are given. In particular $\mu_{\Sigma\Sigma^{\ast}}$ recently
constrained by SELEX is shown to be below $0.82 \mu_N$. The recent GRAAL data
on $\eta$ photoproduction off the nucleon are explained in terms of a new
narrow antidecuplet neutron-like resonance.
