  We studied by M\"{o}ssbauer spectroscopy the Na$_{0.82}$CoO$_2$ compound
using 1% $^{57}$Fe as a local probe which substitutes for the Co ions.
M\"{o}ssbauer spectra at T=300 K revealed two sites which correspond to
Fe$^{3+}$ and Fe$^{4+}$. The existence of two distinct values of the quadrupole
splitting instead of a continuous distribution should be related with the
charge ordering of Co$^{+3}$, Co$^{+4}$ ions and ion ordering of Na(1) and
Na(2). Below T=10 K part of the spectrum area, corresponding to Fe$^{4+}$ and
all of Fe$^{3+}$, displays broad magnetically split spectra arising either from
short-range magnetic correlations or from slow electronic spin relaxation.
