Observations on the Variable Source of Cosmic Radio Frequency Radiation in the Constellation of Cygnus

An account is given of investigations on a strong variable source of radio frequency energy in the constellation of Cygnus, including a determination of the size and celestial coordinates of the source and a study of the variations over a frequency range from 60 to 200 Mc/s. The frequency spectra are compared with those of galactic and solar radiation. The position of the source is found to be in a region of relatively low stellar density and not coinciding with an outstanding stellar object. A discussion of limits of distance and possible nature of the source is given.