This paper describes the Ozon-Mir four-channel spectrometer, intended for determining the gas and aerosol content of the atmosphere by the eclipse method. The spectrometer measures the direct solar radiation in 136 spectral intervals, with a half-width of 2.5-10 Å in the 0.27-1.13-μm spectral region. The spectrometer is mounted on the Priroda module of the Mir orbital station.