In this work, we show an experiment in which the analysis of the fringe visibilities at different wavelengths provides information on the spectral morphology of stellar sources. For our purposes, we have inserted a filter wheel between a camera and a telescope obscured by a double-aperture lid for it to operate as a Michelson Stellar interferometer. The wheel allows the use of up to nine astronomical filters. The spectral emission of stellar sources, either single or binary stars, has been simulated by using the light emitted from the output surfaces of two-meter-long polymer optical fibers illuminated by a broadband light-emitting diode. By analyzing the variation of the fringe visibility with the wavelength, we are able to determine the angular size and separation of our light sources, as well as to find the spectral characteristics of the emission of the stars.
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