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spectroheliograph comparison table
Subject has definition is a kind of
spectrographAn instrument that records the amount of light in each range of wavelength, that is, in each range of color. In general, each type of astronomical object, such as a star or a galaxy, will emit a characteristic spectrum of light. (See spectrum.)detector
spectroheliographDevice with which spectra of the various regions of the Sun are obtained and photographed.spectrograph

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