  There are constructed exact solutions of the quantum-mechanical equation for
a spin S=1 particle in 2-dimensional Riemannian space of constant positive
curvature, spherical plane, in presence of an external magnetic field, analogue
of the homogeneous magnetic field in the Minkowski space. A generalized formula
for energy levels describing quantization of the motion of the vector particle
in magnetic field on the 2-dimensional space S_{2} has been found,
nonrelativistic and relativistic equations have been solved.
