  We discuss the possibility of localizing an electron in a highly excited
Rydberg state. The second-order correlation of emitted photons is the tool for
the determination of electron position. This second-order correlation of
emitted radiation and, therefore, the correlation of operators describing the
acceleration of the electron allows for a partial localization of the electron
in its orbit. The correlation function is found by approximating the transition
matrix elements by their values in the classical limit. It is shown that the
second-order correlation, depending on two times, is a function of the time
difference and is a periodic function of this argument with the period equal to
the period of the corresponding classical motion. The function has sharp maxima
corresponding to large electron acceleration in the vicinity of the
``perihelion.'' This allows the localization of the electron in its consecutive
approach to the perihelion point.
