  The electromagnetic form factors are computed using eigenstates of linear
momentum for the nucleon. The latter is described in the framework of the
chiral color-dielectric model, projecting the hedgehog ansatz on eigenstates of
angular momentum and isospin. Form factors are well reproduced, with the
exception of the magnetic one for the proton, up to $q^2 \simeq 0.5$ GeV$^2$.
The effect of the removal of the spurious center-of-mass contributions shows up
mainly in the electric form factor of the proton. A noticeable improvement is
obtained with respect to the calculation without linear momentum projection.
