Аннотация:The features of auroral electron fluxes, which form rayed structures in auroras, are investigated. The experimental study was the results of triangulation measurements with equipment recording radiation in a wide wavelength range (380–580 nm). It is shown that the spectra of the precipitating electron flux can be approximated by the sum of two electron fluxes having a power-law energy spectrum and a Maxwellian energy distribution.